Does 450 calories for Pepperoni Pizza Slice from Whole Foods seem accurate?

Picked up the $12 pizza deal on Fridays from Whole Foods. So, the label at the hot bar shows 450 calories for a slice of Pepperoni. A Costco slice of Pepperoni weighs 252 g clocking at 620 calories. This slice weighs 199g – used a digital scale. If you do the math, it should be about ~ 490 calories without taking into consideration the macros. Thoughts?