-46.15% is the change from 312 to 168
Calculation steps:
[( 168 - 312 ) ÷ 312] x 100 = -46.15%
Formula
Percentage change = [(168 - 312) / 312] x 100
Subtract the new number by the original number
168 - 312 = -144
-144 ÷ 312 = -0.46153846153846156
-0.46153846153846156 x 100 = -46.15%