-14.51% is the change from 641 to 548
Calculation steps:
[( 548 - 641 ) ÷ 641] x 100 = -14.51%
Formula
Percentage change = [(548 - 641) / 641] x 100
Subtract the new number by the original number
548 - 641 = -93
-93 ÷ 641 = -0.14508580343213728
-0.14508580343213728 x 100 = -14.51%