Answer: 39.8% more
Explanation:
She had 51500 visitors first and then she had 72000 so if we set up a proportion we can do 51500 over 100 (because that’s the percent the first time) is equal too 72000 over x and when we find x we get 139.805. That’s 39.805 more than 100 and if you round it you get 39.8