Aéroports tot up 2020 losses

Aéroports de Montréal is totting up its losses from 2020. But the numbers don’t add up for me. I think of losses in the sense of what you make vs. what you spend, but the big number here seems to be arrived at by comparing 2020’s profits to 2019’s.

Says here that the operating costs for 2020 were $158.6 million and the revenue was $282.2 million, so it seems to me they’re still well in the black and have nothing to complain of. In fact they’re doing better than I would’ve expected. Maybe someone can explain to me how you look at a disappointing profit compared to last year’s profit, and call it a loss.