-54.46% is the change from 560 to 255
Calculation steps:
[( 255 - 560 ) ÷ 560] x 100 = -54.46%
Formula
Percentage change = [(255 - 560) / 560] x 100
Subtract the new number by the original number
255 - 560 = -305
-305 ÷ 560 = -0.5446428571428571
-0.5446428571428571 x 100 = -54.46%