Federal review 2020 Stimulus check question when change in filing status

We have always filed as married filing jointly, but this year we're filing married filing separately.

There's a part in Turbotax about double checking the amount received for 1st and 2nd round stimulus payments (Question appears in wife's return) , however I'm not sure how to fill the amounts as they were both received based on our married filing jointly status from previous years returns. First check we received was $2400 (based on 2018 return) second check was $453 (based on 2019 return). Not sure what amount to enter in the box for her 2nd stimulus payment, since this was obtained via a joint return. Question says to enter the exact amount or IRS may delay our return.