31.95% is the change from 266 to 351
Calculation steps:
[( 351 - 266 ) ÷ 266] x 100 = 31.95%
Formula
Percentage change = [(351 - 266) / 266] x 100
Subtract the new number by the original number
351 - 266 = 85
85 ÷ 266 = 0.31954887218045114
0.31954887218045114 x 100 = 31.95%