-96.36% is the change from 770 to 28
Calculation steps:
[( 28 - 770 ) ÷ 770] x 100 = -96.36%
Formula
Percentage change = [(28 - 770) / 770] x 100
Subtract the new number by the original number
28 - 770 = -742
-742 ÷ 770 = -0.9636363636363636
-0.9636363636363636 x 100 = -96.36%