-5.47% is the change from 548 to 518
Calculation steps:
[( 518 - 548 ) ÷ 548] x 100 = -5.47%
Formula
Percentage change = [(518 - 548) / 548] x 100
Subtract the new number by the original number
518 - 548 = -30
-30 ÷ 548 = -0.05474452554744526
-0.05474452554744526 x 100 = -5.47%