-71.78% is the change from 861 to 243
Calculation steps:
[( 243 - 861 ) ÷ 861] x 100 = -71.78%
Formula
Percentage change = [(243 - 861) / 861] x 100
Subtract the new number by the original number
243 - 861 = -618
-618 ÷ 861 = -0.7177700348432056
-0.7177700348432056 x 100 = -71.78%