John did some tax planning, because he had a large gain on the sale of Amazon stock. He calculated that he would be in the 33 percent marginal tax bracket in the current year as compared with his normal 28 percent. He decided to make his charitable contribution of $5,000 in December instead of his normal practice of doing it in March of the following year. He also shifted his overtime by one week, so he would be paid his $3000 in January instead of December. How much money would he save?