<p>For the former, different schools use different formulas, such that there can be significant differences in full need awards. For the latter, the particular formula in use can cause significant differences for various students at a given school, even though, e.g., household income might be similar.</p>
<p>Home equity is sometimes cited. Schools A and B can treat it differently, resulting in significant aid variations. At school A families C and D might have the same income but different assets which could make a difference.</p>
<p>It’s not to say that preferential packaging doesn’t happen, but it’s hard to know it’s a factor unless the school says it can be, and even then it’s just a maybe.</p>