The N/A status means that the current funds of the bot have been increased by adding more investment using the trailing down or trailing up options. In such a case, the Current Funds cannot be compared with the Initial Funds (Change) because it doesn't represent the bot performance.
Here are two main reasons why that can happen:
You have a Classic Bot with Trailing Up enabled. The extra quote currency is taken from your available balance to place a new buy order on the top of the grid.
You have a Sbot with active Trailing Down enabled. The extra quote currency is taken from your available balance to purchase new base currency, the old base currency is returned back to your available balance.
📝 Note: If you are using Trailing Up alone on the Sbot, then it is not affected by this rule so it will be possible to calculate the Change value.
❗ Important: The system will stop calculating the investment change figure as soon as the Classic bot starts moving grids up and the Sbot starts moving grids down.