Using two date column to fill a gap in pricevalue

Hey everyone,

i have a table just like this one

the problem is: i need to do a chart where show me the valueleft month by month, ok my "Valueleft" solve this problem but in some cases there is a few months until the client pays for the product(example customer A took 3 months), what i need is to show the "Price" value until the datepayment is equal on axis, example

Thanks for the help

PowerBi File