-94.24% is the change from 677 to 39
Calculation steps:
[( 39 - 677 ) ÷ 677] x 100 = -94.24%
Formula
Percentage change = [(39 - 677) / 677] x 100
Subtract the new number by the original number
39 - 677 = -638
-638 ÷ 677 = -0.9423929098966026
-0.9423929098966026 x 100 = -94.24%