Doctor of Credit cited a range of +20% to +37.5%, not a flat +37.5%. But without a clear methodology it’s hard to know what that range is actually measuring.

If you look at the published tables, the outcomes depend entirely on which categories and which price points you end up booking. For example, comparing like-for-like price points within a category, the change can be negative at the low end and very large at the high end.

At the extremes, a traveler who only redeems Cat 1 at the lowest price point could see a decrease, while someone redeeming mostly top-category hotels at the highest price points could see a very large increase. Real-world impact will sit somewhere between those extremes depending on booking patterns and availability.

Using the tables, that’s roughly -14% if you compare the old lowest Cat 1 price point to the new lowest, and roughly +67% if you compare the old highest Cat 8 price point to the new highest.