2082.5% is the change from 40 to 873
Calculation steps:
[( 873 - 40 ) ÷ 40] x 100 = 2082.5%
Formula
Percentage change = [(873 - 40) / 40] x 100
Subtract the new number by the original number
873 - 40 = 833
833 ÷ 40 = 20.825
20.825 x 100 = 2082.5%
Example