-17.59% is the change from 665 to 548
Calculation steps:
[( 548 - 665 ) ÷ 665] x 100 = -17.59%
Formula
Percentage change = [(548 - 665) / 665] x 100
Subtract the new number by the original number
548 - 665 = -117
-117 ÷ 665 = -0.17593984962406015
-0.17593984962406015 x 100 = -17.59%