How much production does chopping woods or rainforest give in Civilization VI?
Solution 1:
The gains from chopping woods or any other resource do not increase by era. The base amount you receive from a chop depends on the number of technological and cultural advances (technologies) you possess. The tooltip does account for your advances when you hover over the respective "harvest" button. This also accounts for game speed. You only need to factor in your modifiers from, say, Magnus being established in that city and a policy that gives you bonus production towards wonders, in your case.