97.78% is the change from 315 to 623
Calculation steps:
[( 623 - 315 ) ÷ 315] x 100 = 97.78%
Formula
Percentage change = [(623 - 315) / 315] x 100
Subtract the new number by the original number
623 - 315 = 308
308 ÷ 315 = 0.9777777777777777
0.9777777777777777 x 100 = 97.78%