-46.73% is the change from 306 to 163
Calculation steps:
[( 163 - 306 ) ÷ 306] x 100 = -46.73%
Formula
Percentage change = [(163 - 306) / 306] x 100
Subtract the new number by the original number
163 - 306 = -143
-143 ÷ 306 = -0.4673202614379085
-0.4673202614379085 x 100 = -46.73%