1531.58% is the change from 19 to 310
Calculation steps:
[( 310 - 19 ) ÷ 19] x 100 = 1531.58%
Formula
Percentage change = [(310 - 19) / 19] x 100
Subtract the new number by the original number
310 - 19 = 291
291 ÷ 19 = 15.31578947368421
15.31578947368421 x 100 = 1531.58%