-45.04% is the change from 564 to 310
Calculation steps:
[( 310 - 564 ) ÷ 564] x 100 = -45.04%
Formula
Percentage change = [(310 - 564) / 564] x 100
Subtract the new number by the original number
310 - 564 = -254
-254 ÷ 564 = -0.450354609929078
-0.450354609929078 x 100 = -45.04%