7.59% is the change from 237 to 255
Calculation steps:
[( 255 - 237 ) ÷ 237] x 100 = 7.59%
Formula
Percentage change = [(255 - 237) / 237] x 100
Subtract the new number by the original number
255 - 237 = 18
18 ÷ 237 = 0.0759493670886076
0.0759493670886076 x 100 = 7.59%