-27.6% is the change from 250 to 181
Calculation steps:
[( 181 - 250 ) ÷ 250] x 100 = -27.6%
Formula
Percentage change = [(181 - 250) / 250] x 100
Subtract the new number by the original number
181 - 250 = -69
-69 ÷ 250 = -0.276
-0.276 x 100 = -27.6%