You know what it looks like its doing. Its showing the right KWH usage for all three MTU's and the NET.

But, it looks like for MTU1 cost, it is adding the combined negative costs of MTU2 and MTU3.

Something like :

Example.

MTU2 KWH = -100 * .20 = -$20.

MTU3 KWH = -100 * .20 = -$20.

MTU1 KWH = 300 * .20 = $60.00

KWH cost is .20 / KWH

So, for MTU1 KWH its correctly showing 300, but for cost its showing $100.00 instead of $60.00

and then its throwing off COST for NET. It shows the correct NET KWH as 100 KWH, but then for cost its showing

$60.00 instead of correctly showing $20.00