-8.55% is the change from 667 to 610
Calculation steps:
[( 610 - 667 ) ÷ 667] x 100 = -8.55%
Formula
Percentage change = [(610 - 667) / 667] x 100
Subtract the new number by the original number
610 - 667 = -57
-57 ÷ 667 = -0.08545727136431784
-0.08545727136431784 x 100 = -8.55%