-97.68% is the change from 561 to 13
Calculation steps:
[( 13 - 561 ) ÷ 561] x 100 = -97.68%
Formula
Percentage change = [(13 - 561) / 561] x 100
Subtract the new number by the original number
13 - 561 = -548
-548 ÷ 561 = -0.9768270944741533
-0.9768270944741533 x 100 = -97.68%