-98.99% is the change from 690 to 7
Calculation steps:
[( 7 - 690 ) ÷ 690] x 100 = -98.99%
Formula
Percentage change = [(7 - 690) / 690] x 100
Subtract the new number by the original number
7 - 690 = -683
-683 ÷ 690 = -0.9898550724637681
-0.9898550724637681 x 100 = -98.99%