68.45% is the change from 187 to 315
Calculation steps:
[( 315 - 187 ) ÷ 187] x 100 = 68.45%
Formula
Percentage change = [(315 - 187) / 187] x 100
Subtract the new number by the original number
315 - 187 = 128
128 ÷ 187 = 0.6844919786096256
0.6844919786096256 x 100 = 68.45%