-15.95% is the change from 671 to 564
Calculation steps:
[( 564 - 671 ) ÷ 671] x 100 = -15.95%
Formula
Percentage change = [(564 - 671) / 671] x 100
Subtract the new number by the original number
564 - 671 = -107
-107 ÷ 671 = -0.15946348733233978
-0.15946348733233978 x 100 = -15.95%