-95.71% is the change from 210 to 9
Calculation steps:
[( 9 - 210 ) ÷ 210] x 100 = -95.71%
Formula
Percentage change = [(9 - 210) / 210] x 100
Subtract the new number by the original number
9 - 210 = -201
-201 ÷ 210 = -0.9571428571428572
-0.9571428571428572 x 100 = -95.71%