EC Ltd (Kaplan Kit)

Hello Sir

Kindly help me with this question.

Q) EC Ltd produces and sells the following two products throughout the year in a constant mix:

Product X Product Y
Variable cost per $ sales $0.45 $0.6
Fixed costs $1212,000 per period

The management of EC Ltd has stated that total revenues will reach a maximum of $4,000,000, and is generated by the two products in the following proportions:

Product X Product Y
Variable cost per $ of sales 70% 30%

Required: calculate breakeven sales revenue based on the sales mix assumed above.

Sir, I did not understand whether how we are taking 70% and 30% as sales mix when it is mentioned that it is the variable cost per $ of sales.

Thank you for your help.