-97.35% is the change from 567 to 15
Calculation steps:
[( 15 - 567 ) ÷ 567] x 100 = -97.35%
Formula
Percentage change = [(15 - 567) / 567] x 100
Subtract the new number by the original number
15 - 567 = -552
-552 ÷ 567 = -0.9735449735449735
-0.9735449735449735 x 100 = -97.35%