Utility monitor helper kw instead of kwh

Hi!

I have a probelm but i don’t know how to fix it.
I have several smart plug to monitor energy and cost of several things (fridge, 3d printer, dishwasher etc). I track the single device in the energy panel and i can see the kwh usage of everyone, i have a fixed energy price and want to estimate the monthly cost for them.
So, i set a helper with utility monitor with monthly reset and used a template sensor to multiply the value for the cost of kwh, ad works 100% for every appliance but one: the utility monitor use kw instead of kwh and i don’t know why! I set the helper in the exact way of the other, tried to delete and make it again but same result, the plug meter is giveng te correct value in kwh
Any ideas?