Xiaopang’s family paid a total of 672 yuan for water last year, and this year they saved 5 yuan per month compared with last year. Based on this calculation, how much is the total water fee expected to be paid this year?
小胖家去年共缴水费672元，今年比去年每月节约5元，照这样计算，今年预计一共要缴水费多少元？
<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">672 - 60</gadget>
<output>612</output>

<result>612</result>