429.51% is the change from 61 to 323
Calculation steps:
[( 323 - 61 ) ÷ 61] x 100 = 429.51%
Formula
Percentage change = [(323 - 61) / 61] x 100
Subtract the new number by the original number
323 - 61 = 262
262 ÷ 61 = 4.295081967213115
4.295081967213115 x 100 = 429.51%