Xiaowen bought a 567 yuan item in a shopping mall during the promotion period. How much do they actually need to pay? (shop poster: if you shop more than 200 yuan, you can reduce the price by 12%). And explain the solution I know how to do it, but it's wishful thinking. Help me explain the solution

Mall poster: if you buy more than 200 yuan, you can reduce the price by 1 / 12. Because they buy more than 200 yuan, they meet the requirements, so: 567 × (1-1 / 12) = 567 × 11 / 12, about = 517 (yuan). You can also calculate by yourself, the formula is right! OK? Mall poster: if you buy more than 200 yuan, you can reduce the price

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