These are "Commercial" postage rates, that is, when you print your postage labels, like via PayPal. No big difference between old and new rates, it seems to me.
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old expiring rates:
https://pe.usps.com/cpim/ftp/manuals/dmm300/Notice123.pdf
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new rates, scheduled for Jan 26,2020:
https://pe.usps.com/resources/PriceChange/January%202020%20-%20Notice123.pdf
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Robert
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