503.77% is the change from 53 to 320
Calculation steps:
[( 320 - 53 ) ÷ 53] x 100 = 503.77%
Formula
Percentage change = [(320 - 53) / 53] x 100
Subtract the new number by the original number
320 - 53 = 267
267 ÷ 53 = 5.037735849056604
5.037735849056604 x 100 = 503.77%