A price of 800 rubles was increased by 15 percent, then the new price was reduced by 10 percent. What is the final price in rubles?
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- The first change leaves 115 percent of the original price.
- Multiply 800 by 115 ÷ 100, then multiply the result by 90 ÷ 100.
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Answer: 828
After the increase, the price was 800 × 115 ÷ 100 = 920 rubles. After the reduction, it became 920 × 90 ÷ 100 = 828 rubles.