-99% is the change from 699 to 7
Calculation steps:
[( 7 - 699 ) ÷ 699] x 100 = -99%
Formula
Percentage change = [(7 - 699) / 699] x 100
Subtract the new number by the original number
7 - 699 = -692
-692 ÷ 699 = -0.9899856938483548
-0.9899856938483548 x 100 = -99%