-98% is the change from 600 to 12
Calculation steps:
[( 12 - 600 ) ÷ 600] x 100 = -98%
Formula
Percentage change = [(12 - 600) / 600] x 100
Subtract the new number by the original number
12 - 600 = -588
-588 ÷ 600 = -0.98
-0.98 x 100 = -98%
Example