1678.95% is the change from 19 to 338
Calculation steps:
[( 338 - 19 ) ÷ 19] x 100 = 1678.95%
Formula
Percentage change = [(338 - 19) / 19] x 100
Subtract the new number by the original number
338 - 19 = 319
319 ÷ 19 = 16.789473684210527
16.789473684210527 x 100 = 1678.95%