-98.98% is the change from 684 to 7
Calculation steps:
[( 7 - 684 ) ÷ 684] x 100 = -98.98%
Formula
Percentage change = [(7 - 684) / 684] x 100
Subtract the new number by the original number
7 - 684 = -677
-677 ÷ 684 = -0.9897660818713451
-0.9897660818713451 x 100 = -98.98%