87.5% is the change from 168 to 315
Calculation steps:
[( 315 - 168 ) ÷ 168] x 100 = 87.5%
Formula
Percentage change = [(315 - 168) / 168] x 100
Subtract the new number by the original number
315 - 168 = 147
147 ÷ 168 = 0.875
0.875 x 100 = 87.5%
Example