1237.5% is the change from 40 to 535
Calculation steps:
[( 535 - 40 ) ÷ 40] x 100 = 1237.5%
Formula
Percentage change = [(535 - 40) / 40] x 100
Subtract the new number by the original number
535 - 40 = 495
495 ÷ 40 = 12.375
12.375 x 100 = 1237.5%
Example