Error in my bonus calculator
===

Here is my code so far:

    # This program will determine the appropriate bonus to be given to both the store
    # and the employess.

    # Lab 3-4

    # The main function
    def main():
        monthlySales = getSales() # Call to get sales
        salesIncrease = getIncrease() # Call to get sales increase
        storeAmount = storeBonus(monthlySales) # Call to get the store bonus
        empAmount = empBonus(monthlySales) # Call to get the employee bonus
        printBonus (storeAmount, empAmount) # Call to print amounts    
        
    # This function gets the monthly sales
    def getSales():
        monthlySales = input('Enter the monthly sales $')
        monthlySales = float(monthlySales)
        return monthlySales

    # This function gets the percent of increase in sales
    def getIncrease():
        salesIncrease = input('Enter percent of sales increase. For example, 4% should be entered as 4: ')
        salesIncrease = float(salesIncrease)
        salesIncrease = salesIncrease / 100
        return salesIncrease

    # This function determines storeAmount bonus
    def storeBonus(monthlySales):
        if monthlySales >=110000:
            storeAmount = 6000
        elif monthlySales >=100000:
            storeAmount = 5000
        elif monthlySales >=90000:
            storeAmount = 4000
        elif monthlySales >=80000:
            storeAmount = 3000
        else:
            storeAmount = 0
        return storeAmount

    # This function determines empAmount bonus
    def empBonus(salesIncrease):
        if salesIncrease >= .05:
            empAmount = 75
        elif salesIncrease >= .04:
            empAmount = 50
        elif salesIncrease >= .03:
            empAmount = 40
        else:
            empAmount = 0
        return empAmount

    # This function prints the bonus information
    def printBonus(storeAmount, empAmount):
        print('The store bonus is $', storeAmount)
        print('The employee bonus is $', empAmount)
        if storeAmount == 6000 and empAmount == 75:
            print('Congrats! You have reached the highest bonus amounts possible!')

    # Calls main
    main()

Now in order to test this code I was give these following scenarios:

1) monthlySales = 120500
   salesIncrease = 5

2) monthlySales = 93400
   salesIncrease = 5

3) monthlySales = 75000
   salesIncrease = 1.5

4) monthlySales = 82000
   salesIncrease = 3.6

5) monthlySales = 125000
   salesIncrease = 4.5

Now all is well up until 3-5.  The "employee bonus amount" is not supposed to be $75, however that is what comes out.  Any ideas on how to fix this problem?  Anyone see any errors in my code that I failed to see?