4273.68% is the change from 19 to 831
Calculation steps:
[( 831 - 19 ) ÷ 19] x 100 = 4273.68%
Formula
Percentage change = [(831 - 19) / 19] x 100
Subtract the new number by the original number
831 - 19 = 812
812 ÷ 19 = 42.73684210526316
42.73684210526316 x 100 = 4273.68%