-42.37% is the change from 177 to 102
Calculation steps:
[( 102 - 177 ) ÷ 177] x 100 = -42.37%
Formula
Percentage change = [(102 - 177) / 177] x 100
Subtract the new number by the original number
102 - 177 = -75
-75 ÷ 177 = -0.423728813559322
-0.423728813559322 x 100 = -42.37%