"Now, when we compare ourselves against that same benchmark, the southern regional average, we found ourselves last year $1,700 dollars below that mark, and projecting out to next year," Songy said, "If nothing is done, we'll be $2,100 under the southern regional average."
The southern regional average is 2,100 dollars
The context says "2100 under the southern regional average"
( z1 average :ARG1 ( z2 monetary-quantity :quant 2100 :unit ( z3 dollar ) ) :ARG2 ( z4 region :mod ( z5 south ) ) )