Can anyone approximate the reduction in flow rate when I change my pipe size in a water circulation system?

I have this cheap little 12V pump from Amazon... [https://www.amazon.com/dp/B0196WL55G/ref=sspa\_dk\_detail\_0?psc=1&pd\_rd\_i=B0196WL55G&pd\_rd\_w=sIyAp&pf\_rd\_p=8a8f3917-7900-4ce8-ad90-adf0d53c0985&pd\_rd\_wg=UqgXh&pf\_rd\_r=RQWPZV4W3PJCFJ7TKAN0&pd\_rd\_r=95530f50-734f-11e9-a617-ef95815d54ab](https://www.amazon.com/dp/B0196WL55G/ref=sspa_dk_detail_0?psc=1&pd_rd_i=B0196WL55G&pd_rd_w=sIyAp&pf_rd_p=8a8f3917-7900-4ce8-ad90-adf0d53c0985&pd_rd_wg=UqgXh&pf_rd_r=RQWPZV4W3PJCFJ7TKAN0&pd_rd_r=95530f50-734f-11e9-a617-ef95815d54ab)

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I am currently circulating water with it though about 100 feet of garden hose(3/4" ID?). The flow rate is 1.75 GPM through that hose. What can I expect if I reduce the pipe to .170 ID(1/4" OD drip irrigation)?