69.03% is the change from 310 to 524
Calculation steps:
[( 524 - 310 ) ÷ 310] x 100 = 69.03%
Formula
Percentage change = [(524 - 310) / 310] x 100
Subtract the new number by the original number
524 - 310 = 214
214 ÷ 310 = 0.6903225806451613
0.6903225806451613 x 100 = 69.03%