Please explain how the primary deficit and public sector deficit formulas were derived? what are the formulas? please give good presentations and clear step by step explanation, if not please do not take the question, thank you.

GDP: 400 Government consumption: 100 Transfers: 80 Government investment: 12 Government net interest payments: 8 Government production: 40 Tax revenue: 180d) The primary deficit 100+12+80-180 = 0.03 = 3% 400 e) The public sector deficit G+I + Tr - T+ iD 100 + 12 + 80 - 180 + 8 = = 0.05 = 5% Y 400