The garment factory processed 1200 sets of school uniforms, which was originally planned to be completed in 4 days. Now it is required to order 100 sets, and it also requires 4 days to complete. In this way, how many more sets of school uniforms will be made every day than before?
服装厂加工1200套校服，原计划4天完成．现在要求增订100套，同样要求4天完成．这样平均每天要比原来多做多少套校服？
<gadget id="calculator">100 / 4</gadget>
<output>25</output>

<result>25</result>