115.7% is the change from 121 to 261
Calculation steps:
[( 261 - 121 ) ÷ 121] x 100 = 115.7%
Formula
Percentage change = [(261 - 121) / 121] x 100
Subtract the new number by the original number
261 - 121 = 140
140 ÷ 121 = 1.1570247933884297
1.1570247933884297 x 100 = 115.7%