-71.7% is the change from 159 to 45
Calculation steps:
[( 45 - 159 ) ÷ 159] x 100 = -71.7%
Formula
Percentage change = [(45 - 159) / 159] x 100
Subtract the new number by the original number
45 - 159 = -114
-114 ÷ 159 = -0.7169811320754716
-0.7169811320754716 x 100 = -71.7%