-99.21% is the change from 891 to 7
Calculation steps:
[( 7 - 891 ) ÷ 891] x 100 = -99.21%
Formula
Percentage change = [(7 - 891) / 891] x 100
Subtract the new number by the original number
7 - 891 = -884
-884 ÷ 891 = -0.9921436588103255
-0.9921436588103255 x 100 = -99.21%