-30.15% is the change from 481 to 336
Calculation steps:
[( 336 - 481 ) ÷ 481] x 100 = -30.15%
Formula
Percentage change = [(336 - 481) / 481] x 100
Subtract the new number by the original number
336 - 481 = -145
-145 ÷ 481 = -0.30145530145530147
-0.30145530145530147 x 100 = -30.15%