-98.25% is the change from 685 to 12
Calculation steps:
[( 12 - 685 ) ÷ 685] x 100 = -98.25%
Formula
Percentage change = [(12 - 685) / 685] x 100
Subtract the new number by the original number
12 - 685 = -673
-673 ÷ 685 = -0.9824817518248176
-0.9824817518248176 x 100 = -98.25%