what should the interest rate be?

This problem is based on the following video: How much do you need to save every month to have $100,000 for your child's tuition? (CNBC 4/24/2020 by Robert Exley Jr.) As you watch the video, please fill out the TVM Framework for the 529 Education Savings Plan: (IMPORTANT: all values are numeric except the unknown, which is a question mark: ?) n i PMT TVM Framework PV 6% % FV 100,000 18 12 216 258 To the nearest whole dollar, the video claims that the amount to save each month is $ Compute the unknown value: $ Please make a short comment below that compares the computation made by the video vs. your true) computation: This problem is based on the following video: How much do you need to save every month to have $100,000 for your child's tuition? (CNBC 4/24/2020 by Robert Exley Jr.) As you watch the video, please fill out the TVM Framework for the 529 Education Savings Plan: (IMPORTANT: all values are numeric except the unknown, which is a question mark: ?) n i PMT TVM Framework PV 6% % FV 100,000 18 12 216 258 To the nearest whole dollar, the video claims that the amount to save each month is $ Compute the unknown value: $ Please make a short comment below that compares the computation made by the video vs. your true) computation