-23.81% is the change from 210 to 160
Calculation steps:
[( 160 - 210 ) ÷ 210] x 100 = -23.81%
Formula
Percentage change = [(160 - 210) / 210] x 100
Subtract the new number by the original number
160 - 210 = -50
-50 ÷ 210 = -0.23809523809523808
-0.23809523809523808 x 100 = -23.81%