How to apply for such a BEM card?

Question

BEM

In particular, questions arose with the price block.

1) If applied to the blocks of the old price and the current flex, then you need to additionally wrap them in one block, then what should we call it?

2) What is the modifier here? Only crossed out numbers or the full price along with a note ("old / current / promo code price")

Answer 1

1) People look from left to right, this format will be confusing. See analogues, the same OZON.
2) "2999 rub." - cross it all out
3) No extra text, use color.
4) What does "how to name" mean? Start with the name of the parent. The parent is the name of the block.