600 calories for 3 slices of pizza?

I ate 3 slices of this pizza, but i really can't tell how much a slice is.
I measured a slice to be 12 cm and about 70 grams each, but I couldn't get a solid estimate from the app I usually use, especially since the crust is pretty thick and it has a lot of oil on top of the cheese.
Is 200 per slice good?