-99.2% is the change from 628 to 5
Calculation steps:
[( 5 - 628 ) ÷ 628] x 100 = -99.2%
Formula
Percentage change = [(5 - 628) / 628] x 100
Subtract the new number by the original number
5 - 628 = -623
-623 ÷ 628 = -0.9920382165605095
-0.9920382165605095 x 100 = -99.2%