What to do with grapes accumulated on this Grapevine app?

• Give 30% grapes to N Sitaraman
• GIVE ADDITIONAL 18% GRAPES TO N Sitaraman
• if you are on this app for more than 1 year, give additional 12.5% grapes to N Sitaraman
• for the remaining grapes, think "how should I use this grapes" until, one day, you need to give 100% of grapes to N Sitaraman

Make virtual grape juice