-99.2% is the change from 880 to 7
Calculation steps:
[( 7 - 880 ) ÷ 880] x 100 = -99.2%
Formula
Percentage change = [(7 - 880) / 880] x 100
Subtract the new number by the original number
7 - 880 = -873
-873 ÷ 880 = -0.9920454545454546
-0.9920454545454546 x 100 = -99.2%