Google translates:
How to remove the reductions of 7 and a month?
Do not know how to change the rates and improve those for the busiest periods
@Francois148
You can remove the percentages for weekly en monthly discount totally in the "lenght of stay" section:
https://www.airbnb.com/help/article/1233/how-do-i-set-custom-weekly-or-monthly-pricing
But if you want to set custom prices which overrule normal discounts in certain periods, scroll to bottom of Help page and read " custom pricing "
If you use the multicalender, you can also create a rule set to set custom discounts, and add the rule set to a certain period, like high season etc..
Hope this helps,
Emiel