php – how do i add the bottom value dynamically adjusted to the worth scale?

i wish to show base value dynamically adjusted to the worth scale. The bottom value ought to modify dynamiclly.

For instance: FFP2 masks 10pc. Package deal Worth: 4,40€

base value for this scale Worth: 4,40/10pc = 0,44€

Amount Worth desk:
from 100 packages. 5,35€
from 200 packages. 4,80€
from 300 packages. 4,40€

so the bottom value per laptop needs to be modify to the worth at desk for amount while you change the qty like: 5,35/10= 0,535€; 4,80/10=0,48€ ; 4,40/10=0,44€

URL: https://drgermany24.de/product/10er-box-ffp2-atemschutzmaske-4d-fischmaske-marke-famex-farbe-rot/?preview_id=9988&preview_nonce=59e4455b4c&_thumbnail_id=10080&preview=true&swcfpc=1

On Store web page needs to be present the bottom base value like right here: https://hygiene100.de/. On the only product web page the dynamic unit value in addition to the package deal value needs to be displayed.

how am i able to finest implement this? how ought to i proceed