How to decrease input

[BashBedlam]

This is how I would accomplish that goal:

overall_sales = [[0, 0]]

def average (sales_list: list) -> float :
	return sum (sales_list) / len (sales_list)

def input_quartly_sales (divition_number: int) -> list :
	quarterly_sales = []
	for quarter_number in range (1, 5) :
		prompt = f'Enter sales for division {division_number} for the'
		prompt += f' quarter number {quarter_number} : '
		quarterly_sales.append (float (input (prompt)))
	return quarterly_sales

for division_number in range (1, 4) :
	print (f'\nSales for division {division_number}.')
	overall_sales.append (input_quartly_sales  (division_number))

print ()
for division_number in range (1, 4) :
	print (f'The average sales for division {division_number}', end = '')
	print (f' is ${average (overall_sales [division_number]):,.2f}')