How to split an amount by percentages in Excel
Formula (Excel and Google Sheets)
=$F$1*B2Multiply the locked total by each row's percentage: =$F$1*B2, filled down.
- Result on the example
- one result per row in
C2, filled down toC6 - Works in
- Every current version
- Google Sheets
- Same formula
See it work
The formula is already in C2, filled down to C6. Change any input and the result updates, or edit the formula to experiment.
How it works
Each department gets its share of the total: 35% of 250,000 is 87,500. The budget cell is locked with $ so every row multiplies the same total. When the shares add up to 100%, the amounts add up to the budget.
=$F$1*B2Result87500
$F$1$250,000The value in F1.
B235.0%The value in B2.
$F$1*B287500The * operator multiplies.
In Google Sheets
The same formula works in Google Sheets: =$F$1*B2. We ran it in Google Sheets mode on the same data and it returns the same results.
Other ways to do it
Each one was run on the same example sheet.
| Formula | Result | When to use it |
|---|---|---|
| =ROUND($F$1*B2,0) | $87,500, $62,500, $50,000… | Rounds each amount to whole dollars. With awkward shares, see the pitfall on making the rounded amounts add up. |
Common mistakes
- Rounded amounts can be a dollar off the total. Make the last row take the remainder:
=$F$1-SUM(C2:C5). - Check that the shares add up to 100% with
=SUM(B2:B6); if they don't, divide by that sum:=$F$1*B2/SUM($B$2:$B$6).
Try it yourself
Same data, empty answer cell. Your formula is graded instantly, then re-checked on changed data, so a typed-in number won't pass.
Split an amount by percentages
C2, allocate the budget in F1 by the department's share, then fill down to C6.Questions
How do I split by weights that aren't percentages, like headcount?
Divide each weight by the total weight: =$F$1*B2/SUM($B$2:$B$6).
How do I split a bill evenly?
Divide by the number of people: =F1/COUNTA(A2:A6).
Checked by running on 2026-10-30: every formula and result on this page was calculated by the Spreadsheet Practice formula engine, in both Excel and Google Sheets modes.