-98.95% is the change from 667 to 7
Calculation steps:
[( 7 - 667 ) ÷ 667] x 100 = -98.95%
Formula
Percentage change = [(7 - 667) / 667] x 100
Subtract the new number by the original number
7 - 667 = -660
-660 ÷ 667 = -0.9895052473763118
-0.9895052473763118 x 100 = -98.95%