-30.45% is the change from 486 to 338
Calculation steps:
[( 338 - 486 ) ÷ 486] x 100 = -30.45%
Formula
Percentage change = [(338 - 486) / 486] x 100
Subtract the new number by the original number
338 - 486 = -148
-148 ÷ 486 = -0.3045267489711934
-0.3045267489711934 x 100 = -30.45%