-19.61% is the change from 566 to 455
Calculation steps:
[( 455 - 566 ) ÷ 566] x 100 = -19.61%
Formula
Percentage change = [(455 - 566) / 566] x 100
Subtract the new number by the original number
455 - 566 = -111
-111 ÷ 566 = -0.196113074204947
-0.196113074204947 x 100 = -19.61%