437.5% is the change from 40 to 215
Calculation steps:
[( 215 - 40 ) ÷ 40] x 100 = 437.5%
Formula
Percentage change = [(215 - 40) / 40] x 100
Subtract the new number by the original number
215 - 40 = 175
175 ÷ 40 = 4.375
4.375 x 100 = 437.5%
Example