Li Ming's height is 164 cm this year, and 160 cm last year. How much is he taller this year than last year?
李明今年身高是164厘米，去年身高是160厘米，今年比去年长高了百分之几？
<gadget id="calculator">164 - 160</gadget>
<output>4</output>

<gadget id="calculator">4 / 160</gadget>
<output>1/40 = around 0.025</output>

<result>1/40 = around 0.025</result>