-95.6% is the change from 159 to 7
Calculation steps:
[( 7 - 159 ) ÷ 159] x 100 = -95.6%
Formula
Percentage change = [(7 - 159) / 159] x 100
Subtract the new number by the original number
7 - 159 = -152
-152 ÷ 159 = -0.9559748427672956
-0.9559748427672956 x 100 = -95.6%