66.98% is the change from 315 to 526
Calculation steps:
[( 526 - 315 ) ÷ 315] x 100 = 66.98%
Formula
Percentage change = [(526 - 315) / 315] x 100
Subtract the new number by the original number
526 - 315 = 211
211 ÷ 315 = 0.6698412698412698
0.6698412698412698 x 100 = 66.98%