-23.16% is the change from 177 to 136
Calculation steps:
[( 136 - 177 ) ÷ 177] x 100 = -23.16%
Formula
Percentage change = [(136 - 177) / 177] x 100
Subtract the new number by the original number
136 - 177 = -41
-41 ÷ 177 = -0.23163841807909605
-0.23163841807909605 x 100 = -23.16%