-32.75% is the change from 861 to 579
Calculation steps:
[( 579 - 861 ) ÷ 861] x 100 = -32.75%
Formula
Percentage change = [(579 - 861) / 861] x 100
Subtract the new number by the original number
579 - 861 = -282
-282 ÷ 861 = -0.32752613240418116
-0.32752613240418116 x 100 = -32.75%