2330% is the change from 40 to 972
Calculation steps:
[( 972 - 40 ) ÷ 40] x 100 = 2330%
Formula
Percentage change = [(972 - 40) / 40] x 100
Subtract the new number by the original number
972 - 40 = 932
932 ÷ 40 = 23.3
23.3 x 100 = 2330%
Example