Aufschlag
... German for increase in price, impact (externer Link)
Increase in price here means: If a bike usually costs 300 Euros and for some reason it now costs 360 Euros there was an increase in price of 60 Euros. Those 60 Euros are called a "Aufschlag" in German.
Impact here means: The moment something falling hits the ground. This word belongs to physics (a falling stone) or astronomy (a asteroid hitting the earth).