-95.58% is the change from 679 to 30
Calculation steps:
[( 30 - 679 ) ÷ 679] x 100 = -95.58%
Formula
Percentage change = [(30 - 679) / 679] x 100
Subtract the new number by the original number
30 - 679 = -649
-649 ÷ 679 = -0.9558173784977909
-0.9558173784977909 x 100 = -95.58%