-95.57% is the change from 677 to 30
Calculation steps:
[( 30 - 677 ) ÷ 677] x 100 = -95.57%
Formula
Percentage change = [(30 - 677) / 677] x 100
Subtract the new number by the original number
30 - 677 = -647
-647 ÷ 677 = -0.9556868537666174
-0.9556868537666174 x 100 = -95.57%