Overview
Create a Roll Up (Roll Up Key Results) if you are looking to aggregate multiple existing key results to calculate an overall achievement. For instance, a roll up key result could provide the Global sales pipeline by aggregating a key result for North America sales pipeline and another key result for EMEA sales pipeline.
Roll Up Key Results are a bottomup approach, and provides a fantastic path to create alignment through the organization while also empowering teams to create results that move the needle.
When you Roll Up Key Results or Objectives, you're automatically adding the Objective (where the Key Result exists, if its a Roll Up of Key Results) as a dependency of your Objective.
Notes on Rolling Up Key Results
 Rolling up percentage type Key Results with Currency or Number type Key Results provides you with a percentage value.
 You can roll up as many Key Results as you'd like.
Steps
 Select Add another Key Result.
 Select Advanced Options.
 If you entered the name of a Key Result and hit the Enter key, then simply select More Options and then Change Data Source Type.
 Under Other Key Results or Objectives select RollUp Key Results or Objective.
 Name your key result.
 Select RollUp Key Results.
 Search for specific Key Results
 Just like when searching for Objectives in WorkBoard, you can search by Key Result Owner, Team, or name of the Key Result.
 After selecting your first Key Result, either select Done adding Key Results or Add Another Key Result.
 Choose to total or average out all of the values that you're aggregating.
 If all of the Key Results you've added have the same selection for Calculate Overall Progress for this Result as then you will be able to access Advanced Options.
Advanced Options
Calculating Progress Options
Advanced roll up calculation options will allow you to aggregate key results as if they were mapped on a spreadsheet, by lining up updates made to each child key result for each week or month interval.
As such, you'll only see the advanced options link activated if the results you are trying to roll up calculate progress the same way (last entered value, total etc.), and have the same update interval (weekly, monthly, etc).
Follow the directions below to view/enable Advanced Options for your Roll Up of Key Results:
 Select Advanced Options

You need to first decide how the parent key result's data values should be calculated for each week or month from the underlying child results:
 Total of latest updates of the child results
 Average of latest updates of the child results
 Click the dropdown for Calculate Weekly Progress for this Key Result As.

You will then need to dictate how the overall progress from the roll up should be calculated based on the values generated from the child results. In this case, you can select the progress to be the:
 Last entered value
 Total of all the generated data values
 Average of all the generated data values

Click the dropdown for Calculate Overall Progress for this Result As and make a selection.
Adding a Multiplier
Use a multiplier to change the impact of single or multiple Key Results in a Roll Up. You can multiply the values of the Key Results by a decimal to change the overall value of the Key Result.
Example:
If you want to compare something applestoapples, you can use a multiplier against a single key result and then roll up that roll up. Why would you want to do this? A multiplier is applied to all the Key Results you've added, so if you want a multiplier applied to a single Key Result, then you Roll Up the single KR and then Roll it up that Roll Up with the other Key Results.
Broad Steps:
 Create a Roll Up of Key Results for the Key Result(s) that need a multiplier applied to normalize against other Key Results.
 Create a Roll Up (of Key Results) where you roll up the Roll Up you just created with the multiplier applied to it, and the other Key Result(s) that don't require/need a multiplier.
Examples for calculating advanced rollup results
For the examples below, we'll roll up two key results, QA testers hired and Developers hired.
Month 1  Month 2  Month 3  

QA testers hired  3  5  4 
Developers hired  1  0  2 
Example 1:
Rollup key result: Average of 2 New IT Hires Per Month
For this rollup result, take the average of the source key results and measure progress from the last update.
Month 1  Month 2  Month 3  

Average of 2 New IT Hires per month  2 (avg of 3 and 1) 
2.5 (avg of 5 and 0) 
3 (avg of 4 and 2) 
In this example, the key result's current progress will be 3.
Example 2:
Rollup key result: Total number of IT staff hired per month
Take the sum of the source key results and measure progress from the last update.
Month 1  Month 2  Month 3  

Total number of IT staff hired per month  4 (sum of 3 and 1) 
5 (sum of 5 and 0) 
6 (sum of 4 and 2) 
In this example, the key result's current progress will be 6.
Example 3:
Rollup key result: Total new IT hires
Take the sum of the source key results and sum the results.
Month 1  Month 2  Month 3  

Total new IT hires  4 (sum of 3 and 1) 
5 (sum of 5 and 0) 
6 (sum of 4 and 2) 
In this example, the key result's current progress will be 15 (4+5+6).
Example 4:
Rollup key result: Average number of new IT hires per month
Take the sum of the latest updates to the source key results and average the results.
Month 1  Month 2  Month 3  

Average number of new IT hires per month  4 (sum of 3 and 1) 
5 (sum of 5 and 0) 
6 (sum of 4 and 2) 
In this example, the key result's current progress will be 5 (average of 4, 5 and 6).
Create an Objective Roll Up Key Result
 Edit your OKR by hovering over it, clicking the Kebab and then selecting Edit Settings.
 Select Add another Key Result
 Select Advanced Options
 If you enter a name and hit the enter key immediately, you can access KR options by selecting More Options and then Change Data Source Type.
 Under Other key results or objectives select Rollup key results or objectives.
 Choose RollUp Objectives.
 Search for OKRs that you'd like to aggregate for your Key Result. You can select as many as you'd like.
 Choose the Progress percentage you'd like to achieve across the OKR(s) you selected.
 Select Save.