-8.2% is the change from 671 to 616
Calculation steps:
[( 616 - 671 ) ÷ 671] x 100 = -8.2%
Formula
Percentage change = [(616 - 671) / 671] x 100
Subtract the new number by the original number
616 - 671 = -55
-55 ÷ 671 = -0.08196721311475409
-0.08196721311475409 x 100 = -8.2%