The cost of a commodity this year has increased by 1/10 compared to last year, but the original selling price is still maintained. Therefore, the profit per share has dropped by 2/5. Then, what percentage of the selling price is the cost of this commodity this year? Several?
一种商品，今年的成本比去年增加了10分之1，但仍保持原售价，因此，每份利润下降了5分之2，那么，今年这种商品的成本占售价的几分之几？
<gadget id="calculator">22 / 25</gadget>
<output>22/25 = around 0.88</output>

<result>22/25 = around 0.88</result>