-57.23% is the change from 159 to 68
Calculation steps:
[( 68 - 159 ) ÷ 159] x 100 = -57.23%
Formula
Percentage change = [(68 - 159) / 159] x 100
Subtract the new number by the original number
68 - 159 = -91
-91 ÷ 159 = -0.5723270440251572
-0.5723270440251572 x 100 = -57.23%