500% is the change from 135 to 810
Calculation steps:
[( 810 - 135 ) ÷ 135] x 100 = 500%
Formula
Percentage change = [(810 - 135) / 135] x 100
Subtract the new number by the original number
810 - 135 = 675
675 ÷ 135 = 5
5 x 100 = 500%
Example