-27.12% is the change from 236 to 172
Calculation steps:
[( 172 - 236 ) ÷ 236] x 100 = -27.12%
Formula
Percentage change = [(172 - 236) / 236] x 100
Subtract the new number by the original number
172 - 236 = -64
-64 ÷ 236 = -0.2711864406779661
-0.2711864406779661 x 100 = -27.12%