32.91% is the change from 237 to 315
Calculation steps:
[( 315 - 237 ) ÷ 237] x 100 = 32.91%
Formula
Percentage change = [(315 - 237) / 237] x 100
Subtract the new number by the original number
315 - 237 = 78
78 ÷ 237 = 0.3291139240506329
0.3291139240506329 x 100 = 32.91%