To find the percentage of any number you divide your percentage by 100 to get a decimal. 14 ÷ 100 =0.14 then in this case you need to find the number you want to find 14% of . Each reindeer harness is 17.95 so 17.95 * 9 = 161.55 so now you take 161.55 and multiply it by the decimal to get the percentage of 161.55 which equals 22.617 so now add the tax and the cost of the reindeer harnesses and you got your answer :)
