-49.06% is the change from 318 to 162
Calculation steps:
[( 162 - 318 ) ÷ 318] x 100 = -49.06%
Formula
Percentage change = [(162 - 318) / 318] x 100
Subtract the new number by the original number
162 - 318 = -156
-156 ÷ 318 = -0.49056603773584906
-0.49056603773584906 x 100 = -49.06%