-97.34% is the change from 563 to 15
Calculation steps:
[( 15 - 563 ) ÷ 563] x 100 = -97.34%
Formula
Percentage change = [(15 - 563) / 563] x 100
Subtract the new number by the original number
15 - 563 = -548
-548 ÷ 563 = -0.9733570159857904
-0.9733570159857904 x 100 = -97.34%