-96.12% is the change from 721 to 28
Calculation steps:
[( 28 - 721 ) ÷ 721] x 100 = -96.12%
Formula
Percentage change = [(28 - 721) / 721] x 100
Subtract the new number by the original number
28 - 721 = -693
-693 ÷ 721 = -0.9611650485436893
-0.9611650485436893 x 100 = -96.12%