urgent help please just clarify what P+OM is i dont understand what number plugged in gives you 81,880.68

Given: P= - $300,000 F = $300.000(0.6)" O and M (first year) = $12,500 O and M increase = $5,000 MARR = 12% Find: ORI and EUAC EUAC = ($300,000 + $5,000 PG 12%.XAIP 12%.n) +$12,500 - $300.000(0.6)" (AIF 12%..) The table below shows the EUAC for different values of n. n AIP AlF PG F P+O&M EUAC 12 0.16144 0.04144 25.95228 $27.06 $81,880.68 $81,853.62 13 0.15568 0.03568 28.70237 $13.98 $81,545.92 $81,531.94 14 0.15087 0.03087 31.36242 $7.26 $81,419.24 $81,411.98 15 0.14682 0.02682 33.92017 $3.78 $81,446.80 $81,443.01 16 0.14339 0.02339 36.36700 $1.98 $81,590.32 $81,588.34 Given: P= - $300,000 F = $300.000(0.6)" O and M (first year) = $12,500 O and M increase = $5,000 MARR = 12% Find: ORI and EUAC EUAC = ($300,000 + $5,000 PG 12%.XAIP 12%.n) +$12,500 - $300.000(0.6)" (AIF 12%..) The table below shows the EUAC for different values of n. n AIP AlF PG F P+O&M EUAC 12 0.16144 0.04144 25.95228 $27.06 $81,880.68 $81,853.62 13 0.15568 0.03568 28.70237 $13.98 $81,545.92 $81,531.94 14 0.15087 0.03087 31.36242 $7.26 $81,419.24 $81,411.98 15 0.14682 0.02682 33.92017 $3.78 $81,446.80 $81,443.01 16 0.14339 0.02339 36.36700 $1.98 $81,590.32 $81,588.34