-29.29% is the change from 478 to 338
Calculation steps:
[( 338 - 478 ) ÷ 478] x 100 = -29.29%
Formula
Percentage change = [(338 - 478) / 478] x 100
Subtract the new number by the original number
338 - 478 = -140
-140 ÷ 478 = -0.2928870292887029
-0.2928870292887029 x 100 = -29.29%