-98.88% is the change from 627 to 7
Calculation steps:
[( 7 - 627 ) ÷ 627] x 100 = -98.88%
Formula
Percentage change = [(7 - 627) / 627] x 100
Subtract the new number by the original number
7 - 627 = -620
-620 ÷ 627 = -0.988835725677831
-0.988835725677831 x 100 = -98.88%