If rose from the film titanic weighs her options and decides that the benefit of following her heart to be with jack outweighs the fact that he has no money (as cal did), she is acting in accordance with the

social exchange theory

Explanation:

Social exchange theory state that in the relationships we form with others we will always try to weigh the benefits versus the cost of that particular relationship.

Every relationship is a two way which means it is not about one person constantly giving whilst the other one is constantly receiving.

The give and take though is not always equal in all relationships that we have which is what this theory states that we may look at whether we are benefiting from that relationship more than it cost us then we can choose to stay and continue with that association.

If the cost is higher than the benefits it may not worth it to keep associating with that relationship.

Relationships that are worth holding unto are those which have benefits that are higher than the cost those are positive relationships but negative ones cost us more than they benefit us.

i honestly speaking this is too long

you would times this by how many days there are in a year 365*400=$146000