-62.95% is the change from 861 to 319
Calculation steps:
[( 319 - 861 ) ÷ 861] x 100 = -62.95%
Formula
Percentage change = [(319 - 861) / 861] x 100
Subtract the new number by the original number
319 - 861 = -542
-542 ÷ 861 = -0.629500580720093
-0.629500580720093 x 100 = -62.95%