-45.91% is the change from 159 to 86
Calculation steps:
[( 86 - 159 ) ÷ 159] x 100 = -45.91%
Formula
Percentage change = [(86 - 159) / 159] x 100
Subtract the new number by the original number
86 - 159 = -73
-73 ÷ 159 = -0.4591194968553459
-0.4591194968553459 x 100 = -45.91%