-69.92% is the change from 861 to 259
Calculation steps:
[( 259 - 861 ) ÷ 861] x 100 = -69.92%
Formula
Percentage change = [(259 - 861) / 861] x 100
Subtract the new number by the original number
259 - 861 = -602
-602 ÷ 861 = -0.6991869918699187
-0.6991869918699187 x 100 = -69.92%