501.48% is the change from 135 to 812
Calculation steps:
[( 812 - 135 ) ÷ 135] x 100 = 501.48%
Formula
Percentage change = [(812 - 135) / 135] x 100
Subtract the new number by the original number
812 - 135 = 677
677 ÷ 135 = 5.014814814814815
5.014814814814815 x 100 = 501.48%