Fake Company Mu has been growing nicely, due to upgraded products with technology and features that surpass its competitors' products. Revenues (in millions of dollars) for the past four years are listed below. What is the company's growth in revenues in 2017 since 2014? (In other words, what is the percentage change in 2017 from 2014?)

2017 revenues = $47.8

2016 = $39.6

2015 = $36.6

2014 = $31.8

Do not enter dollar signs, percent signs, or commas. The number you enter should be a percent, just as you would expect for a growth rate. But rounded to the nearest one decimal. Any number < 0 should be entered with the usual minus sign, such as -145.1.