-78% is the change from 650 to 143
Calculation steps:
[( 143 - 650 ) ÷ 650] x 100 = -78%
Formula
Percentage change = [(143 - 650) / 650] x 100
Subtract the new number by the original number
143 - 650 = -507
-507 ÷ 650 = -0.78
-0.78 x 100 = -78%
Example