With the new strategic resource required buildings I finally decided to take a closer look at formulas. Well at least right now the manufacturing. I'm trying to decide if I want to replace a Mega Factory with a Durantium Refinery. My first assumption is yes, but I wanted to look at the numbers. In my particular planet losing 55%(adjacency bonus of 15) of the total 615% modifier then yes the +5 is worth it. Before changing anything I'm looking at the final production number the planet currently has. It looks as if there is a mistake to me in the final total. Am I right or am I missing something?

Using the numbers there I should have 59.04
615% x 9.6= 59.04