70.65% is the change from 310 to 529
Calculation steps:
[( 529 - 310 ) ÷ 310] x 100 = 70.65%
Formula
Percentage change = [(529 - 310) / 310] x 100
Subtract the new number by the original number
529 - 310 = 219
219 ÷ 310 = 0.7064516129032258
0.7064516129032258 x 100 = 70.65%