The running-cost maths can say “switch” while the monthly payment says “absolutely not”. How you pay matters as much as what you pay — and dealers will steer you toward whatever earns them commission.
PCP — lower monthly, balloon at the end, designed for people who change cars every three or four years. Fine if that is you; expensive if you keep rolling into new deals without checking the total cost.
HP — higher monthly, you own the car at the end, fewer surprises if you run it until the warranty expires. Boring. Often the better fit if you keep cars for years.