-97.83% is the change from 600 to 13
Calculation steps:
[( 13 - 600 ) ÷ 600] x 100 = -97.83%
Formula
Percentage change = [(13 - 600) / 600] x 100
Subtract the new number by the original number
13 - 600 = -587
-587 ÷ 600 = -0.9783333333333334
-0.9783333333333334 x 100 = -97.83%