Mr Cooper Group Inc fka COOP

[xoom]

Ron, I think you added the principal (P) twice.
You only need to add it once

When you did this, you added P for the second time

Now add back in valuation for WMB of $298 Billion

Initial Investment $298 B
Number years 15.5
Interest rate 1.5
Value(return after 15.5 years, compound interest) : $401.99 B


https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator