-46.56% is the change from 305 to 163
Calculation steps:
[( 163 - 305 ) ÷ 305] x 100 = -46.56%
Formula
Percentage change = [(163 - 305) / 305] x 100
Subtract the new number by the original number
163 - 305 = -142
-142 ÷ 305 = -0.46557377049180326
-0.46557377049180326 x 100 = -46.56%