The Major Difference of "Big" and "Large" in Use

In general, the use of the two words “big” and “large” have no big difference. However, when it comes to number, quantity or sum, we use “large” instead of “big.”
a large amount of money
a large number of problems
a large quantity of goods
Analyzing the concordances for “big” and “large,” you will notice that the word used to modify amount, number and quantity is “large” rather than “big.”