-95.22% is the change from 209 to 10
Calculation steps:
[( 10 - 209 ) ÷ 209] x 100 = -95.22%
Formula
Percentage change = [(10 - 209) / 209] x 100
Subtract the new number by the original number
10 - 209 = -199
-199 ÷ 209 = -0.9521531100478469
-0.9521531100478469 x 100 = -95.22%