Calculator base on Regular price not calculating correctly

Hello,

In Woocommerce (thus in Bulky) product Regular price is with , not with .
For example I have product with price 23,90€ and want to lower the price by -10% with “Bulky calculator base on Regular price” but it doesn’t take in account ,90€ at all so it seems to calculate with 23€ and set Sale price to be 20.70€ when correct is 21,51€.

Please fix as soon as possible. I would need this tomorrow to lower all my product prices by -10%…

I have Premium version.

I posted this also without an answer to https://wordpress.org/support/topic/calculator-base-on-regular-price-not-working-correctly/