510.59% is the change from 85 to 519
Calculation steps:
[( 519 - 85 ) ÷ 85] x 100 = 510.59%
Formula
Percentage change = [(519 - 85) / 85] x 100
Subtract the new number by the original number
519 - 85 = 434
434 ÷ 85 = 5.105882352941176
5.105882352941176 x 100 = 510.59%