-12.29% is the change from 643 to 564
Calculation steps:
[( 564 - 643 ) ÷ 643] x 100 = -12.29%
Formula
Percentage change = [(564 - 643) / 643] x 100
Subtract the new number by the original number
564 - 643 = -79
-79 ÷ 643 = -0.12286158631415241
-0.12286158631415241 x 100 = -12.29%