-4.7% is the change from 659 to 628
Calculation steps:
[( 628 - 659 ) ÷ 659] x 100 = -4.7%
Formula
Percentage change = [(628 - 659) / 659] x 100
Subtract the new number by the original number
628 - 659 = -31
-31 ÷ 659 = -0.04704097116843703
-0.04704097116843703 x 100 = -4.7%