505.66% is the change from 53 to 321
Calculation steps:
[( 321 - 53 ) ÷ 53] x 100 = 505.66%
Formula
Percentage change = [(321 - 53) / 53] x 100
Subtract the new number by the original number
321 - 53 = 268
268 ÷ 53 = 5.056603773584905
5.056603773584905 x 100 = 505.66%