如何通过按单独视图中的按钮来增加标签？

so basically I'm familiar with app development and Xcode, but I'm still in the beginning stages of learning and I need some help. I've created a emotions quiz type UI and at the end of the 10 questions, I have a page that displays the different emotions and the scores that the user earned throughout the quiz. What I need help on is wen the user clicks a button on question 1 to get the label on my results page to increase by 1. I've tried many different methods so far but can't seem to quite figure it out. Ive linked my buttons to their respective view controller as actions and the labels to their respective view controller as outlets.so basically I'm familiar with app development