-41.03% is the change from 290 to 171
Calculation steps:
[( 171 - 290 ) ÷ 290] x 100 = -41.03%
Formula
Percentage change = [(171 - 290) / 290] x 100
Subtract the new number by the original number
171 - 290 = -119
-119 ÷ 290 = -0.4103448275862069
-0.4103448275862069 x 100 = -41.03%