-35% is the change from 220 to 143
Calculation steps:
[( 143 - 220 ) ÷ 220] x 100 = -35%
Formula
Percentage change = [(143 - 220) / 220] x 100
Subtract the new number by the original number
143 - 220 = -77
-77 ÷ 220 = -0.35
-0.35 x 100 = -35%
Example