197.78% is the change from 90 to 268
Calculation steps:
[( 268 - 90 ) ÷ 90] x 100 = 197.78%
Formula
Percentage change = [(268 - 90) / 90] x 100
Subtract the new number by the original number
268 - 90 = 178
178 ÷ 90 = 1.9777777777777779
1.9777777777777779 x 100 = 197.78%