Mt5 Reports

 
Hello,
This is regarding the mt5 reports, i have an account which shows dd of 7% on the risks tab when i open reports, my question is that is the drawdown calculated in time periods? For example my account has the risks chart in 2 hour time period, in my understanding, my account went into 3% drawdown in the first hour and then became breakeven again, but in the second hour it went into 4% dd again, but recovered and went into profits, am i right in saying that the drawdown during that time period was added together to give 7% drawdown? Even tho in propfirm logic it never went over 5% because it went into 3% and recovered, then went 4% but recovered again, so thats not over 5% but in mt5 it is 7%. I hope you can confirm this or make me understand how it’s calculated.
Thanks for your help