Niko had his savings increase by %5 this year. He started out with $350 in his account and calculated how much he had at the end of the year by using the following sets of calculations. $350 x 0.05 equals $17.50 $350 + $17 and $0.50 equals $367.50 find a single number that Nico could have multiplied his starting amount of $350 by.