-95.48% is the change from 620 to 28
Calculation steps:
[( 28 - 620 ) ÷ 620] x 100 = -95.48%
Formula
Percentage change = [(28 - 620) / 620] x 100
Subtract the new number by the original number
28 - 620 = -592
-592 ÷ 620 = -0.9548387096774194
-0.9548387096774194 x 100 = -95.48%