-39.77% is the change from 171 to 103
Calculation steps:
[( 103 - 171 ) ÷ 171] x 100 = -39.77%
Formula
Percentage change = [(103 - 171) / 171] x 100
Subtract the new number by the original number
103 - 171 = -68
-68 ÷ 171 = -0.39766081871345027
-0.39766081871345027 x 100 = -39.77%