430% is the change from 40 to 212
Calculation steps:
[( 212 - 40 ) ÷ 40] x 100 = 430%
Formula
Percentage change = [(212 - 40) / 40] x 100
Subtract the new number by the original number
212 - 40 = 172
172 ÷ 40 = 4.3
4.3 x 100 = 430%
Example