504.44% is the change from 135 to 816
Calculation steps:
[( 816 - 135 ) ÷ 135] x 100 = 504.44%
Formula
Percentage change = [(816 - 135) / 135] x 100
Subtract the new number by the original number
816 - 135 = 681
681 ÷ 135 = 5.044444444444444
5.044444444444444 x 100 = 504.44%