Most West European countries have been at around 25-30% EV sales with remainder hybrids or ICE.

So up 50% implies up 12.5-15% of share of total volume (500k), so ICE is down by the same share. So about 60-75K fewer ICE out of the total 500k vehicles

Norway was already about 90% EV so the switching line is misleading there. EV / ICE shares were roughly static over last couple of years last I looked. Anyone in Norway still buying ICE must have a good reason given the incentives.

Edit just reread. 500k is total EVs sold for first quarter, so adjust above accordingly. So if 330k ish is normal pre Iran, then a million a quarter is total, etc etc