D - 15.4 million.
59.3m is 56% of 105.89m whereas 51.6m is 57% of 90.52m
105.89 - 90.52 = 15.37
My answer got deleted for some reason, so here we go again. To convert a number to a percent, you multiply the number by 100. So if you had the number 2.4, you would multiply it by 100 to get 240%. After multiplying it by 100, simply add a percent sign, and you're done!
