One kind of picture album is reduced by 15%, and the current price is the original price______ %．

One kind of picture album is reduced by 15%, and the current price is the original price______ %．

1-15% = 85%; the current price is 85% of the original price

A commodity is 9 yuan cheaper than before after 15% price reduction. How much is the price before price reduction

Original price = 9 △ 15% = 60 yuan

For a commodity, the price will be reduced by 15%, which is the original price of 140 yuan
Don't use fractions

It's very difficult to do a question like this without a score. 140 is 85 percent, which is equivalent to a 85 percent discount at the beginning
The number is a number with a fraction, not a decimal

For a 20 yuan item, first raise the price by 15%, then reduce the price by 5%
A. It's more expensive than the original price B. the price remains unchanged C. It's cheaper than the original price D. It's impossible to compare

The price after the price increase is the percentage of the original price: 1 + 15% = 115%, the current price is the percentage of the price after the price increase: 1-5% = 95%, the current price is: 20 × 115% × 95% = 21.85 (yuan); 20 < 21.85, so this commodity is more expensive than the original price