If the profit contribution per acre of tomatoes changed from $$7300$ to $$7397,$ what would be the effect of this change on total contribution? That is$,$ by how much would the optimal objective function change?

if there is an increase, write the value;

if there is no change, write $0$;

if there is a decrease write a negative value;

In either case there is NO need to for $ sign or decimal points.