138.42% is the change from 419 to 999
Calculation steps:
[( 999 - 419 ) ÷ 419] x 100 = 138.42%
Formula
Percentage change = [(999 - 419) / 419] x 100
Subtract the new number by the original number
999 - 419 = 580
580 ÷ 419 = 1.3842482100238664
1.3842482100238664 x 100 = 138.42%