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Math Problem: It is known that the total price of goods is 62 yuan, and the tax rate of goods with VAT invoice is 13%. How to calculate the pre-tax amount of goods+pre-tax amount *0. 13=62?
Knowing that the total price of goods is 62 yuan, then this 62 yuan is the price including tax, and the tax rate of goods invoiced with VAT is 13%. If the tax-included price of 62 is divided by (1+ 13)%, the tax-excluded price of the commodity can be obtained, that is, 62/1.13 = 54.50066.60666666666

Backstepping: 54.87×1.13 = 62.01= 62 yuan.