-39.72% is the change from 564 to 340
Calculation steps:
[( 340 - 564 ) ÷ 564] x 100 = -39.72%
Formula
Percentage change = [(340 - 564) / 564] x 100
Subtract the new number by the original number
340 - 564 = -224
-224 ÷ 564 = -0.3971631205673759
-0.3971631205673759 x 100 = -39.72%