# Metatrader5 lot_size computation with stop_loss as price

I am trying to compute lot size having stop loss (as price) but the lot size ends up quite big and eventually, I get an error:

Error code: 10014 Error message: Invalid volume

My current code is:

```import MetaTrader5 as mt5

def calculate_lot_size(symbol, stop_loss_price):
# Connect to the MetaTrader 5 terminal
if not mt5.initialize():
return None

# Get the current account balance
account_info = mt5.account_info()
if account_info is None:
print("Failed to retrieve account information")
mt5.shutdown()
return None

account_balance = account_info.balance

# Get the symbol's point value (minimum price change)
symbol_info = mt5.symbol_info(symbol)
if symbol_info is None:
print(f"Failed to retrieve symbol information for {symbol}")
mt5.shutdown()
return None

point_value = symbol_info.point

# Calculate the maximum acceptable loss based on the account balance and stop loss price
max_loss = account_balance * (symbol_info.last / stop_loss_price - 1)

# Calculate the lot size based on the maximum acceptable loss and the point value
lot_size = max_loss / point_value

# Print the calculated lot size
print(f"Lot size for {symbol}: {lot_size} lots")

# Disconnect from the MetaTrader 5 terminal
mt5.shutdown()

return lot_size

# Example usage
symbol = "EURUSD"
stop_loss_price = 1.2000  # Stop loss price
lot_size = calculate_lot_size(symbol, stop_loss_price)
```

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