2461.54% is the change from 39 to 999
Calculation steps:
[( 999 - 39 ) ÷ 39] x 100 = 2461.54%
Formula
Percentage change = [(999 - 39) / 39] x 100
Subtract the new number by the original number
999 - 39 = 960
960 ÷ 39 = 24.615384615384617
24.615384615384617 x 100 = 2461.54%