494.44% is the change from 54 to 321
Calculation steps:
[( 321 - 54 ) ÷ 54] x 100 = 494.44%
Formula
Percentage change = [(321 - 54) / 54] x 100
Subtract the new number by the original number
321 - 54 = 267
267 ÷ 54 = 4.944444444444445
4.944444444444445 x 100 = 494.44%