-28.66% is the change from 478 to 341
Calculation steps:
[( 341 - 478 ) ÷ 478] x 100 = -28.66%
Formula
Percentage change = [(341 - 478) / 478] x 100
Subtract the new number by the original number
341 - 478 = -137
-137 ÷ 478 = -0.28661087866108786
-0.28661087866108786 x 100 = -28.66%