-12.91% is the change from 643 to 560
Calculation steps:
[( 560 - 643 ) ÷ 643] x 100 = -12.91%
Formula
Percentage change = [(560 - 643) / 643] x 100
Subtract the new number by the original number
560 - 643 = -83
-83 ÷ 643 = -0.1290824261275272
-0.1290824261275272 x 100 = -12.91%