-95.1% is the change from 143 to 7
Calculation steps:
[( 7 - 143 ) ÷ 143] x 100 = -95.1%
Formula
Percentage change = [(7 - 143) / 143] x 100
Subtract the new number by the original number
7 - 143 = -136
-136 ÷ 143 = -0.951048951048951
-0.951048951048951 x 100 = -95.1%
Example