Variance Attribution Calculator

This tool helps you understand what caused a change between two time periods by breaking it into two components:

Volume Effect (e.g. headcount, units sold)

Rate Effect (e.g. salary per person, price per unit)

Enter the values for both periods below. We’ll break down the total variance into what was caused by a change in volume vs. a change in rate —

No spreadsheets needed.

Variables
Variance
Attributable Variance