Preference is to treat it as a convenience option and not a discounting method. Have the annual option paid annually with no discount for $2,988, but debate is strong.
Note that the monthly option is $249/month.
Most Software as a service vendors generally don't book annual deals except in highly specialized cases. Most customers prefer to be able to cancel/change anytime they choose. Also, deals done "offline" end up actually often being more trouble than they are worth to administrate especially for a $2988 ticket.
Generally, companies don't view prepaying for SaaS products a year in advance as a "convenience" (to them) so if the debate is internal (not customer driven), I'd set this debate aside until it's requested by the customer. Most customers will request a discount to pre-pay annual service.
Happy to talk this through with you in a call, to work through the specifics of your situation in more detail.