340% is the change from 40 to 176
Calculation steps:
[( 176 - 40 ) ÷ 40] x 100 = 340%
Formula
Percentage change = [(176 - 40) / 40] x 100
Subtract the new number by the original number
176 - 40 = 136
136 ÷ 40 = 3.4
3.4 x 100 = 340%
Example