The tea shop sells tea in two kinds of packaging, the normal type is 0.54 kg per box, and the deluxe type is 390 g per box. Now, 65 boxes of normal packaging tea are converted into deluxe packaging. How many boxes can be changed?
茶叶店售两种包装的茶叶，普通型每盒0.54千克，豪华型每盒390克，现将65盒普通型包装的茶叶改装成豪华型包装，可以改成多少盒？
<gadget id="calculator">390 / 1_000</gadget>
<output>39/100 = around 0.39</output>

<gadget id="calculator">65 / (39/100)</gadget>
<output>500/3 = around 166.666667</output>

<gadget id="calculator">0.54 * (500/3)</gadget>
<output>90</output>

<result>90</result>