The Steadfast Convention in Perth has raised a record-breaking $400,000 for Breast Cancer Care WA, following a string of generous donations at the gala dinner on Tuesday night.

The dinner, with a circus spectacular theme, marked the end of the convention, which began on Sunday and was attended by about 2000 people.

Dinner guests heard directly from a breast cancer survivor about the terrible toll the disease takes, and the total raised is the most ever collected at a Steadfast event.

Breast Cancer Care WA provides specialist nursing, counselling, and financial support to women and men affected by breast cancer, as well as their partners and families.