4247.37% is the change from 19 to 826
Calculation steps:
[( 826 - 19 ) ÷ 19] x 100 = 4247.37%
Formula
Percentage change = [(826 - 19) / 19] x 100
Subtract the new number by the original number
826 - 19 = 807
807 ÷ 19 = 42.473684210526315
42.473684210526315 x 100 = 4247.37%