100.83% is the change from 121 to 243
Calculation steps:
[( 243 - 121 ) ÷ 121] x 100 = 100.83%
Formula
Percentage change = [(243 - 121) / 121] x 100
Subtract the new number by the original number
243 - 121 = 122
122 ÷ 121 = 1.0082644628099173
1.0082644628099173 x 100 = 100.83%