35.19% is the change from 233 to 315
Calculation steps:
[( 315 - 233 ) ÷ 233] x 100 = 35.19%
Formula
Percentage change = [(315 - 233) / 233] x 100
Subtract the new number by the original number
315 - 233 = 82
82 ÷ 233 = 0.351931330472103
0.351931330472103 x 100 = 35.19%