One of the first questions you may have as a virtual assistant when navigating your first clients to work with is how much you should charge. A simple step could be jumping onto the Bureau of Labor Statistics to get a rough estimate based on your niche. Beyond that, you may want to take a look at typical payments that virtual assistants receive based on their specialty or ask fellow virtual assistants for their own information regarding payments in groups and forums.
A note that one size does not fit all. You may be applying for a job with a certain title, but are coming in with a desirable specialty that could benefit a client. Do not shortchange yourself when first applying for a job.