-96.61% is the change from 827 to 28
Calculation steps:
[( 28 - 827 ) ÷ 827] x 100 = -96.61%
Formula
Percentage change = [(28 - 827) / 827] x 100
Subtract the new number by the original number
28 - 827 = -799
-799 ÷ 827 = -0.966142684401451
-0.966142684401451 x 100 = -96.61%