-64.15% is the change from 159 to 57
Calculation steps:
[( 57 - 159 ) ÷ 159] x 100 = -64.15%
Formula
Percentage change = [(57 - 159) / 159] x 100
Subtract the new number by the original number
57 - 159 = -102
-102 ÷ 159 = -0.6415094339622641
-0.6415094339622641 x 100 = -64.15%