-34.94% is the change from 478 to 311
Calculation steps:
[( 311 - 478 ) ÷ 478] x 100 = -34.94%
Formula
Percentage change = [(311 - 478) / 478] x 100
Subtract the new number by the original number
311 - 478 = -167
-167 ÷ 478 = -0.3493723849372385
-0.3493723849372385 x 100 = -34.94%