-95.63% is the change from 687 to 30
Calculation steps:
[( 30 - 687 ) ÷ 687] x 100 = -95.63%
Formula
Percentage change = [(30 - 687) / 687] x 100
Subtract the new number by the original number
30 - 687 = -657
-657 ÷ 687 = -0.9563318777292577
-0.9563318777292577 x 100 = -95.63%