-97.34% is the change from 564 to 15
Calculation steps:
[( 15 - 564 ) ÷ 564] x 100 = -97.34%
Formula
Percentage change = [(15 - 564) / 564] x 100
Subtract the new number by the original number
15 - 564 = -549
-549 ÷ 564 = -0.973404255319149
-0.973404255319149 x 100 = -97.34%