-7.07% is the change from 679 to 631
Calculation steps:
[( 631 - 679 ) ÷ 679] x 100 = -7.07%
Formula
Percentage change = [(631 - 679) / 679] x 100
Subtract the new number by the original number
631 - 679 = -48
-48 ÷ 679 = -0.07069219440353461
-0.07069219440353461 x 100 = -7.07%