521.48% is the change from 135 to 839
Calculation steps:
[( 839 - 135 ) ÷ 135] x 100 = 521.48%
Formula
Percentage change = [(839 - 135) / 135] x 100
Subtract the new number by the original number
839 - 135 = 704
704 ÷ 135 = 5.214814814814815
5.214814814814815 x 100 = 521.48%