-91.02% is the change from 880 to 79
Calculation steps:
[( 79 - 880 ) ÷ 880] x 100 = -91.02%
Formula
Percentage change = [(79 - 880) / 880] x 100
Subtract the new number by the original number
79 - 880 = -801
-801 ÷ 880 = -0.9102272727272728
-0.9102272727272728 x 100 = -91.02%