-26.61% is the change from 233 to 171
Calculation steps:
[( 171 - 233 ) ÷ 233] x 100 = -26.61%
Formula
Percentage change = [(171 - 233) / 233] x 100
Subtract the new number by the original number
171 - 233 = -62
-62 ÷ 233 = -0.26609442060085836
-0.26609442060085836 x 100 = -26.61%