-88.57% is the change from 210 to 24
Calculation steps:
[( 24 - 210 ) ÷ 210] x 100 = -88.57%
Formula
Percentage change = [(24 - 210) / 210] x 100
Subtract the new number by the original number
24 - 210 = -186
-186 ÷ 210 = -0.8857142857142857
-0.8857142857142857 x 100 = -88.57%