The current price of a piece of clothing is 200 yuan, which is 40 yuan higher than the original price. How much is the price increase of this piece of clothing?
一件衣服现价200元，比原价提高了40元，这件衣服提价了多少．
<gadget id="calculator">200 - 40</gadget>
<output>160</output>

<gadget id="calculator">40 / 160</gadget>
<output>1/4 = around 0.25</output>

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