-13.15% is the change from 631 to 548
Calculation steps:
[( 548 - 631 ) ÷ 631] x 100 = -13.15%
Formula
Percentage change = [(548 - 631) / 631] x 100
Subtract the new number by the original number
548 - 631 = -83
-83 ÷ 631 = -0.13153724247226625
-0.13153724247226625 x 100 = -13.15%