-39.15% is the change from 189 to 115
Calculation steps:
[( 115 - 189 ) ÷ 189] x 100 = -39.15%
Formula
Percentage change = [(115 - 189) / 189] x 100
Subtract the new number by the original number
115 - 189 = -74
-74 ÷ 189 = -0.3915343915343915
-0.3915343915343915 x 100 = -39.15%