The current price of a commodity is 80 yuan, which is 16 yuan higher than the original price. How much is the increase? What is the column
一种商品现价是80元，比原价提高了16元，提高了百分之几？列式是多少
<gadget id="calculator">80 - 16</gadget>
<output>64</output>

<gadget id="calculator">16 / 64</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>