-96.11% is the change from 180 to 7
Calculation steps:
[( 7 - 180 ) ÷ 180] x 100 = -96.11%
Formula
Percentage change = [(7 - 180) / 180] x 100
Subtract the new number by the original number
7 - 180 = -173
-173 ÷ 180 = -0.9611111111111111
-0.9611111111111111 x 100 = -96.11%