-19.92% is the change from 236 to 189
Calculation steps:
[( 189 - 236 ) ÷ 236] x 100 = -19.92%
Formula
Percentage change = [(189 - 236) / 236] x 100
Subtract the new number by the original number
189 - 236 = -47
-47 ÷ 236 = -0.19915254237288135
-0.19915254237288135 x 100 = -19.92%