-42.8% is the change from 250 to 143
Calculation steps:
[( 143 - 250 ) ÷ 250] x 100 = -42.8%
Formula
Percentage change = [(143 - 250) / 250] x 100
Subtract the new number by the original number
143 - 250 = -107
-107 ÷ 250 = -0.428
-0.428 x 100 = -42.8%