-4.96% is the change from 121 to 115
Calculation steps:
[( 115 - 121 ) ÷ 121] x 100 = -4.96%
Formula
Percentage change = [(115 - 121) / 121] x 100
Subtract the new number by the original number
115 - 121 = -6
-6 ÷ 121 = -0.049586776859504134
-0.049586776859504134 x 100 = -4.96%