Answer:
37% 62%
70.5% 29.5%
Step-by-step explanation:
To find the percentage of something, you first add up both of the given numbers. For the starting data of shells, there were 928 shells in total. Specifically, 348 of those shells were narrow (or 348/928 shells or 37%). On the other hand, there were 580 round shells (or 580/928 or 62%) We can check this answer by adding up both percentages, 37 + 63 = 100%.
We follow this same method for the ending data, as we have 800 shells. Narrow shells make up 564/800, or 70.5% of the data. On the other hand, round shells make up 236/800, or 29.5% of the data. Adding these two percentages up, we get 100, so the answer is accurate.
Hope this helps!
