-48.48% is the change from 656 to 338
Calculation steps:
[( 338 - 656 ) ÷ 656] x 100 = -48.48%
Formula
Percentage change = [(338 - 656) / 656] x 100
Subtract the new number by the original number
338 - 656 = -318
-318 ÷ 656 = -0.4847560975609756
-0.4847560975609756 x 100 = -48.48%