-8.64% is the change from 671 to 613
Calculation steps:
[( 613 - 671 ) ÷ 671] x 100 = -8.64%
Formula
Percentage change = [(613 - 671) / 671] x 100
Subtract the new number by the original number
613 - 671 = -58
-58 ÷ 671 = -0.08643815201192251
-0.08643815201192251 x 100 = -8.64%