The garment factory originally planned to make 60 sets of children's clothing, each with 160 centimeters of cloth, but actually each set uses 150 centimeters of cloth, how many more sets of children's clothes can be made with these cloths than before?
服装厂原来计划要做60套童装，每套用布160厘米，实际每套用布150厘米，这些布现在比原来可多做多少套童装？
<gadget id="calculator">160 / 150</gadget>
<output>16/15 = around 1.066667</output>

<gadget id="calculator">60 * (16/15)</gadget>
<output>64</output>

<gadget id="calculator">64 - 60</gadget>
<output>4</output>

<result>4</result>