-57.6% is the change from 566 to 240
Calculation steps:
[( 240 - 566 ) ÷ 566] x 100 = -57.6%
Formula
Percentage change = [(240 - 566) / 566] x 100
Subtract the new number by the original number
240 - 566 = -326
-326 ÷ 566 = -0.5759717314487632
-0.5759717314487632 x 100 = -57.6%