-28.81% is the change from 236 to 168
Calculation steps:
[( 168 - 236 ) ÷ 236] x 100 = -28.81%
Formula
Percentage change = [(168 - 236) / 236] x 100
Subtract the new number by the original number
168 - 236 = -68
-68 ÷ 236 = -0.288135593220339
-0.288135593220339 x 100 = -28.81%