310.53% is the change from 19 to 78
Calculation steps:
[( 78 - 19 ) ÷ 19] x 100 = 310.53%
Formula
Percentage change = [(78 - 19) / 19] x 100
Subtract the new number by the original number
78 - 19 = 59
59 ÷ 19 = 3.1052631578947367
3.1052631578947367 x 100 = 310.53%