-99% is the change from 697 to 7
Calculation steps:
[( 7 - 697 ) ÷ 697] x 100 = -99%
Formula
Percentage change = [(7 - 697) / 697] x 100
Subtract the new number by the original number
7 - 697 = -690
-690 ÷ 697 = -0.9899569583931134
-0.9899569583931134 x 100 = -99%