-48.43% is the change from 159 to 82
Calculation steps:
[( 82 - 159 ) ÷ 159] x 100 = -48.43%
Formula
Percentage change = [(82 - 159) / 159] x 100
Subtract the new number by the original number
82 - 159 = -77
-77 ÷ 159 = -0.48427672955974843
-0.48427672955974843 x 100 = -48.43%