322.5% is the change from 40 to 169
Calculation steps:
[( 169 - 40 ) ÷ 40] x 100 = 322.5%
Formula
Percentage change = [(169 - 40) / 40] x 100
Subtract the new number by the original number
169 - 40 = 129
129 ÷ 40 = 3.225
3.225 x 100 = 322.5%
Example