300% is the change from 19 to 76
Calculation steps:
[( 76 - 19 ) ÷ 19] x 100 = 300%
Formula
Percentage change = [(76 - 19) / 19] x 100
Subtract the new number by the original number
76 - 19 = 57
57 ÷ 19 = 3
3 x 100 = 300%
Example