2147.37% is the change from 19 to 427
Calculation steps:
[( 427 - 19 ) ÷ 19] x 100 = 2147.37%
Formula
Percentage change = [(427 - 19) / 19] x 100
Subtract the new number by the original number
427 - 19 = 408
408 ÷ 19 = 21.473684210526315
21.473684210526315 x 100 = 2147.37%