How to find power of a number in SQLite

I want to update the Interest field in my database. My SQL query is like as per below

Update Table_Name set Interest = Principal * Power(( 1 + (rate / 100),year)

This query works fine in MySQL but don't work with SQLite.

The error says that No Power funcation found

Does anyone know how to resolve this problem as I have to do this using query to update more than 3000 records at a time.