85.48% is the change from 310 to 575
Calculation steps:
[( 575 - 310 ) ÷ 310] x 100 = 85.48%
Formula
Percentage change = [(575 - 310) / 310] x 100
Subtract the new number by the original number
575 - 310 = 265
265 ÷ 310 = 0.8548387096774194
0.8548387096774194 x 100 = 85.48%