-46.96% is the change from 313 to 166
Calculation steps:
[( 166 - 313 ) ÷ 313] x 100 = -46.96%
Formula
Percentage change = [(166 - 313) / 313] x 100
Subtract the new number by the original number
166 - 313 = -147
-147 ÷ 313 = -0.4696485623003195
-0.4696485623003195 x 100 = -46.96%