Creating an interaction that subtracts time in pie chart?
I am working on creating a time management course for college students. We are looking to incorporate a similar concept found on this website: http://www.studygs.net/schedule/ where users will type in the hours they spend on activities and "time" will slip away on the pie chart to showcase how they spend their day.
I am new (6 months in) to E-Learning and building courses in Storyline and I can't quite seem to figure out how to create this interaction. ANY advice would be welcomed and truly appreciated.
Thank you in advance!