1310.26% is the change from 39 to 550
Calculation steps:
[( 550 - 39 ) ÷ 39] x 100 = 1310.26%
Formula
Percentage change = [(550 - 39) / 39] x 100
Subtract the new number by the original number
550 - 39 = 511
511 ÷ 39 = 13.102564102564102
13.102564102564102 x 100 = 1310.26%