Do I need to show 500k THB per person or is it enough as a family's savings for a visa in Vietnam from Thailand?

The question inquires whether a family traveling from Thailand to Vietnam must show 500,000 THB per head in their bank account or if it suffices to have that amount in a savings plan. Comments clarify that having the total amount in a savings account is acceptable and that it may just be required as a combined total for the family instead of per individual.