Apply a discount depending on value entered into booking form

Hi Guys,

My client wishes to allow an early bird discount based on 2 different specific entries in the booking form.

The value is related to the number of days so, for example:

IF NoOfDays > 2 THEN Discount = $50 per registrant on a group registration before 15th March 2019 ELSEIF NoOfDays <=2 THEN DISCOUNT = $25

i.e. IF TODAY <= 2019/03/15 then DISCOUNT= [NUMBER_REGISTRANTS]*50 for the 50 discount

Is there anyway to implement this or something similar using a fee field.

Best Regards
Donna

Have spent sometime to think about this. Unfortunately, I don't see a way to handle this requirement

Tuan