-49.36% is the change from 314 to 159
Calculation steps:
[( 159 - 314 ) ÷ 314] x 100 = -49.36%
Formula
Percentage change = [(159 - 314) / 314] x 100
Subtract the new number by the original number
159 - 314 = -155
-155 ÷ 314 = -0.49363057324840764
-0.49363057324840764 x 100 = -49.36%