Hello! With the original price being added up 34%, let's add 1 to that percentage in decimal form. 34% is 0.34 in decimal form. 1 + 0.34 is 1.34. We add 1 to the percentage, because doing that will bring us right to the answer, without doing too much work. Multiply that decimal by 455. 455 * 1.34 is 609.7. There. The retail price will be $609.70.