The Alumni Class Analysis report is broken down into three different columns that consider different gift types: 

Column 1 - Amount - Summing gift amounts with gift type of: Cash, Pay-Cash, MG Pay-Cash, Stock/Property, Stock/Property (Sold), Pay-Stock/Property, Pay-Stock Property (Sold), MG Pay-Stock/Property, MG Pay-Stock/Property (Sold), Gift-in-Kind, Pay-Gift-in-Kind, MG Pay-gift-in-Kind, Other, Pay-Other, MG Pay-Other, Recurring Gift Pay-Cash.

Column 2 - Pledge - Summing gift amounts with gift type of: Pledge, MG Pledge.

Column 3 - Pledge Balance - Summing gift balance amounts with gift type of: Pledge, MG Pledge.


For example, a Constituent makes the following gifts:
$1000 Pledge
$100 Pay-Cash
$100 Pay-Cash
$50 Cash

Alumni Class Analysis report would show:
Amount: $250 (Pay-Cash gifts and Cash gift)
Pledge: $1000 (Pledge)
Balance: $800 (Pledge minus the Pay-Cash gifts)

Note: These columns can be modified on the Gift Types tab of the report parameters.