1325% is the change from 28 to 399
Calculation steps:
[( 399 - 28 ) ÷ 28] x 100 = 1325%
Formula
Percentage change = [(399 - 28) / 28] x 100
Subtract the new number by the original number
399 - 28 = 371
371 ÷ 28 = 13.25
13.25 x 100 = 1325%
Example