497.65% is the change from 85 to 508
Calculation steps:
[( 508 - 85 ) ÷ 85] x 100 = 497.65%
Formula
Percentage change = [(508 - 85) / 85] x 100
Subtract the new number by the original number
508 - 85 = 423
423 ÷ 85 = 4.976470588235294
4.976470588235294 x 100 = 497.65%