5157.89% is the change from 19 to 999
Calculation steps:
[( 999 - 19 ) ÷ 19] x 100 = 5157.89%
Formula
Percentage change = [(999 - 19) / 19] x 100
Subtract the new number by the original number
999 - 19 = 980
980 ÷ 19 = 51.578947368421055
51.578947368421055 x 100 = 5157.89%