33.83% is the change from 266 to 356
Calculation steps:
[( 356 - 266 ) ÷ 266] x 100 = 33.83%
Formula
Percentage change = [(356 - 266) / 266] x 100
Subtract the new number by the original number
356 - 266 = 90
90 ÷ 266 = 0.3383458646616541
0.3383458646616541 x 100 = 33.83%