-47.62% is the change from 210 to 110
Calculation steps:
[( 110 - 210 ) ÷ 210] x 100 = -47.62%
Formula
Percentage change = [(110 - 210) / 210] x 100
Subtract the new number by the original number
110 - 210 = -100
-100 ÷ 210 = -0.47619047619047616
-0.47619047619047616 x 100 = -47.62%