Invest Ksh 500,000 in Old Mutual MMF for 3 years.
At Old Mutual Money Market Fund's current net yield of 8.21% (after Kenya's 15% withholding tax), a Ksh 500,000 deposit grows to about Ksh 639,624 after 3 years — about Ksh 139,624 in interest, assuming daily compounding and no withdrawals.
Final balance
Ksh 639,624
1.28× your deposit
Deposited
Ksh 500,000
One-off, no withdrawals
Interest earned
Ksh 139,624
At 8.21% net p.a.
Year by year
vs keeping it in a bank savings account
The same Ksh 500,000 at Credit Bank's deposit rate of 12.68% would grow to about Ksh 729,977 over the same 3 years — that's -Ksh 90,353 less than Old Mutual Money Market Fund.