I understand that when calculating enterprise value, the formula used is EV = market capitalisation + short-term and long-term debt + minority interests - cash.

However, in the case I am working on, the minority interests listed in the balance sheet are shown as a negative value - (688m). Does this mean that the enterprises value calculation should be:

EV = market capitalisation + debt + -688 - cash. OR

EV = market capitalisation + debt + 688 - cash ?

I am using the EV for market multiple calculations compared to EBITDA etc which I am aware will include earnings from the subsidiary so my EV must allow for 'apples and apples' comparison. However, I don't know understand whether the minority interests needs to be added or subtracted, and why.