119.83% is the change from 121 to 266
Calculation steps:
[( 266 - 121 ) ÷ 121] x 100 = 119.83%
Formula
Percentage change = [(266 - 121) / 121] x 100
Subtract the new number by the original number
266 - 121 = 145
145 ÷ 121 = 1.1983471074380165
1.1983471074380165 x 100 = 119.83%