-95.22% is the change from 627 to 30
Calculation steps:
[( 30 - 627 ) ÷ 627] x 100 = -95.22%
Formula
Percentage change = [(30 - 627) / 627] x 100
Subtract the new number by the original number
30 - 627 = -597
-597 ÷ 627 = -0.9521531100478469
-0.9521531100478469 x 100 = -95.22%