520.16% is the change from 129 to 800
Calculation steps:
[( 800 - 129 ) ÷ 129] x 100 = 520.16%
Formula
Percentage change = [(800 - 129) / 129] x 100
Subtract the new number by the original number
800 - 129 = 671
671 ÷ 129 = 5.2015503875969
5.2015503875969 x 100 = 520.16%