-5.72% is the change from 647 to 610
Calculation steps:
[( 610 - 647 ) ÷ 647] x 100 = -5.72%
Formula
Percentage change = [(610 - 647) / 647] x 100
Subtract the new number by the original number
610 - 647 = -37
-37 ÷ 647 = -0.0571870170015456
-0.0571870170015456 x 100 = -5.72%