-96.7% is the change from 849 to 28
Calculation steps:
[( 28 - 849 ) ÷ 849] x 100 = -96.7%
Formula
Percentage change = [(28 - 849) / 849] x 100
Subtract the new number by the original number
28 - 849 = -821
-821 ÷ 849 = -0.967020023557126
-0.967020023557126 x 100 = -96.7%