-99.04% is the change from 628 to 6
Calculation steps:
[( 6 - 628 ) ÷ 628] x 100 = -99.04%
Formula
Percentage change = [(6 - 628) / 628] x 100
Subtract the new number by the original number
6 - 628 = -622
-622 ÷ 628 = -0.9904458598726115
-0.9904458598726115 x 100 = -99.04%