While I wouldn't use 'Debt' to describe the total value of the open positions, your leverage calculation is correct.
And yes, I do see now that it is a mini account, where 1 lot is 10,000 units of base currency. I was calculating based on 100,000 units. (I should have inferred by the P&L/pips)
On this related note, I'm not entirely sure of the nomenclature of mini accounts. It's evident from here that lotsize is multiplied by 10, i.e. 10,000 units = 1 'lot'. Is there anything else in the statement that differs from a standard account?
Regarding myfxbook's calculation of drawdown, to the best of my knowledge until official sources clarify, in the past, calculations would be based off the 5pm NYT close snapshot.
After the Rexfo pricing became available, it appears now to be calculated on every update. (which makes it more relevant and accurate)
This is a derivative calculation based off the open positions' currency pair, lotsize, and Rexfo's pricing against the account equity. I believe this becomes a problem with mini, micro, and nano accounts, where the non-standard nomenclature of what a lotsize is basically multiplies the value of the open positions by 10, 100, 1000 times. Unless the account equity is similarly multiplied by the same factor (by the broker, as looks to be the case for some cent accounts), the drawdown gets amplified.
How to resolve this? myfxbook would need to have a database of account types for respective brokers, and note their specific idiosyncrasies. I suspect this is already the case with many brokers screwing around naming their currency pairs with a prefix and suffix like EURUSDm, EURUSDct, xEURUSD, etc... It'd just be more work on their part.