337.5% is the change from 40 to 175
Calculation steps:
[( 175 - 40 ) ÷ 40] x 100 = 337.5%
Formula
Percentage change = [(175 - 40) / 40] x 100
Subtract the new number by the original number
175 - 40 = 135
135 ÷ 40 = 3.375
3.375 x 100 = 337.5%
Example