65.71% is the change from 315 to 522
Calculation steps:
[( 522 - 315 ) ÷ 315] x 100 = 65.71%
Formula
Percentage change = [(522 - 315) / 315] x 100
Subtract the new number by the original number
522 - 315 = 207
207 ÷ 315 = 0.6571428571428571
0.6571428571428571 x 100 = 65.71%