3447.37% is the change from 19 to 674
Calculation steps:
[( 674 - 19 ) ÷ 19] x 100 = 3447.37%
Formula
Percentage change = [(674 - 19) / 19] x 100
Subtract the new number by the original number
674 - 19 = 655
655 ÷ 19 = 34.473684210526315
34.473684210526315 x 100 = 3447.37%