-97.99% is the change from 597 to 12
Calculation steps:
[( 12 - 597 ) ÷ 597] x 100 = -97.99%
Formula
Percentage change = [(12 - 597) / 597] x 100
Subtract the new number by the original number
12 - 597 = -585
-585 ÷ 597 = -0.9798994974874372
-0.9798994974874372 x 100 = -97.99%