-35.5% is the change from 338 to 218
Calculation steps:
[( 218 - 338 ) ÷ 338] x 100 = -35.5%
Formula
Percentage change = [(218 - 338) / 338] x 100
Subtract the new number by the original number
218 - 338 = -120
-120 ÷ 338 = -0.35502958579881655
-0.35502958579881655 x 100 = -35.5%