Iceberg lettuce is grown and shipped to stores for about 5050 cents a head, and consumers purchase it for about 115115 cents a head. Find the percent increase.

130%

Explanation:

To calculate the percentage increase:

We work out first the difference between the two numbers.

Increase = Purchase Value per head - Shipped Value per head

=115 - 50

=65 cents

Next, we divide the increase by the original number and multiply the answer by 100.

% increase = 65/50 * 100

=130%

There is a percentage increase of 130% per head.