-41.97% is the change from 548 to 318
Calculation steps:
[( 318 - 548 ) ÷ 548] x 100 = -41.97%
Formula
Percentage change = [(318 - 548) / 548] x 100
Subtract the new number by the original number
318 - 548 = -230
-230 ÷ 548 = -0.4197080291970803
-0.4197080291970803 x 100 = -41.97%