-14.04% is the change from 648 to 557
Calculation steps:
[( 557 - 648 ) ÷ 648] x 100 = -14.04%
Formula
Percentage change = [(557 - 648) / 648] x 100
Subtract the new number by the original number
557 - 648 = -91
-91 ÷ 648 = -0.1404320987654321
-0.1404320987654321 x 100 = -14.04%