-75.61% is the change from 861 to 210
Calculation steps:
[( 210 - 861 ) ÷ 861] x 100 = -75.61%
Formula
Percentage change = [(210 - 861) / 861] x 100
Subtract the new number by the original number
210 - 861 = -651
-651 ÷ 861 = -0.7560975609756098
-0.7560975609756098 x 100 = -75.61%