account_balance = float(500.25)
deposit_amount = float(0)
withdraw_amount = float(0)
def printbalance(account_balance):
    balance = account_balance
    return account_balance
def deposit (deposit_amount, account_balance):
  deposit_amount = float(input('How much would you like to deposit today?'))
  account_balance = account_balance + deposit_amount
  print ('Deposit was $' + '%.2f' % deposit_amount +', current balance is $' + '%.2f' % account_balance)
  return deposit_amount, account_balance
def withdraw (withdraw_amount, account_balance):
  withdraw_amount = float(input('How much would you like to withdraw today?'))
  if withdraw_amount > account_balance:
    print ('$' + '%.2f' % withdraw_amount + 'is greater than your account balance of $' + '%.2f' % account_balance)
  elif withdraw_amount <= account_balance:
    account_balance = account_balance-withdraw_amount
    print('Withdrawal amount was $' + '%.2f' % withdraw_amount + ', current balance is $' + '%.2f' % account_balance)
    return withdraw_amount, account_balance
userchoice = ('M')
while userchoice != 'Q':
  userchoice = input ("What would you like to do?\nEnter B for Balance, D for Deposit, or W to Withdraw. Select Q to Quit")
  if (userchoice == 'B'):
    print ('your current balance:')
    print(printbalance(account_balance))
  elif (userchoice == 'D'):
    deposit(deposit_amount, account_balance)
  elif (userchoice == 'W'):
    withdraw(withdraw_amount, account_balance)
  elif (userchoice == 'Q'):
    print ('Thank you for banking with us.')