529.63% is the change from 135 to 850
Calculation steps:
[( 850 - 135 ) ÷ 135] x 100 = 529.63%
Formula
Percentage change = [(850 - 135) / 135] x 100
Subtract the new number by the original number
850 - 135 = 715
715 ÷ 135 = 5.296296296296297
5.296296296296297 x 100 = 529.63%