490.74% is the change from 54 to 319
Calculation steps:
[( 319 - 54 ) ÷ 54] x 100 = 490.74%
Formula
Percentage change = [(319 - 54) / 54] x 100
Subtract the new number by the original number
319 - 54 = 265
265 ÷ 54 = 4.907407407407407
4.907407407407407 x 100 = 490.74%