-28.4% is the change from 250 to 179
Calculation steps:
[( 179 - 250 ) ÷ 250] x 100 = -28.4%
Formula
Percentage change = [(179 - 250) / 250] x 100
Subtract the new number by the original number
179 - 250 = -71
-71 ÷ 250 = -0.284
-0.284 x 100 = -28.4%