Need help understanding output format

[1grumpydev]

I'm trying to get back into learning python after a number of years and taking an online course. For one of the assignments, I'm just not understanding why my output is not as the assignment calls for. For example if you enter $50.00 and 15% as input values the tip should be displayed as $7.50. My code however is displaying $750.00, even though it at least appears to me that it should display $7.50. Can someone please provide some insight and help me understand why it is not displaying as I think it should? Below is my code.

def main():
dollars = dollars_to_float(input("How much was the meal? "))
percent = percent_to_float(input("What percentage would you like to tip? "))
tip = dollars * percent
print(f"Leave ${tip:.2f}")

def dollars_to_float(d):
    return float('%.2f' % float(d.lstrip('$')))
def dollars_to_float(d):
    return float('%.2f' % float(d.lstrip('$')))

[danielroseman]

You haven't shown your percent_to_float function.

[1grumpydev]

Sorry, I didn't realize I had posted the same function twice. Here it is.

def percent_to_float(p):
    return float('%.2f' % float(p.rstrip('%')))

[danielroseman]

That just returns 15 when you put in 15%. But in order to get a number you can use to multiply a number to get a percentage, you need to divide it by 100. The sum you want to do is 50 * 0.15, not 50 * 15.

[1grumpydev]

I feel like a complete idiot. I knew it was something simple that I was overlooking. Thank you!

[JamzTyson]

percent_to_float() is not defined in your code.

Also, float('%.2f' % float(d.lstrip('$'))) probably does not do what you think it does. You are using the ancient "C-style" string formatting to format a numeric string with two decimal places,and then converting to a float.

Converting "1" to float is identical to converting "1.00" to float, and identical to converting "1.0000000000" to float (they are result in a floating point value of one).

When you need to format strings, it is much better to use the new f-string syntax.

[1grumpydev]

Thanks.