If the seasonally adjusted August 2029 value of FRED series LNS12300060 is below 50.0%, I will donate $75 to a charity of your choice. Otherwise, you will donate $50 to a charity of mine. We will use the first published value for August 2029. If no August 2029 value has been published by December 31, 2029, the bet is void.
Sounds good to me! How about this?
If the seasonally adjusted August 2029 value of FRED series LNS12300060 is below 50.0%, I will donate $75 to a charity of your choice. Otherwise, you will donate $50 to a charity of mine. We will use the first published value for August 2029. If no August 2029 value has been published by December 31, 2029, the bet is void.