Sounds fun.
Explainer videos / whiteboard animations can run $300 - $3000.
You can save quite a bit by having a good script, voiceover, graphics and storyboard all ready to go. Then just hire me to animate it.
The higher price includes researching the company, writing the script, doing the voice over, creating the images and storyboard, etc - all before starting to animate.
Look forward to working with you.
Regards,
Jeremy