Answer: $357 is more amount budgeted for food increase.
Explanation:
Since we have given that
Number of people according to the budget = 150
Cost of food per person= $4.25
Total cost of food is given by

If the number of guests attending the opening was 56% more than expected,
So, number of guests now is given by

Total cost of food is given by
Difference between them is given by

Hence, $357 is more amount budgeted for food increase.