1505.26% is the change from 19 to 305
Calculation steps:
[( 305 - 19 ) ÷ 19] x 100 = 1505.26%
Formula
Percentage change = [(305 - 19) / 19] x 100
Subtract the new number by the original number
305 - 19 = 286
286 ÷ 19 = 15.052631578947368
15.052631578947368 x 100 = 1505.26%