-71.44% is the change from 879 to 251
Calculation steps:
[( 251 - 879 ) ÷ 879] x 100 = -71.44%
Formula
Percentage change = [(251 - 879) / 879] x 100
Subtract the new number by the original number
251 - 879 = -628
-628 ÷ 879 = -0.714448236632537
-0.714448236632537 x 100 = -71.44%