Answer:
operating income will decrease by 650
Explanation:
We need to build the differential analysis comparing the raw process and the additional processing:
[tex]\left[\begin{array}{cccc}&Raw&Further&Differential\\$Variable&-2700&-3960&-1260\\$Fixed Cost&-5000&-5290&-290\\$Total Cost&-7700&-9250&-1550\\$Proceeds&13050&13950&900\\$Result&5350&4700&-650\\\end{array}\right][/tex]
While the revenue increase by 900 dollar the cost increase by 1550 which in the end generated a decrease of 650 in the operating income