Calculate net exports and show the relationship between the government sector balance and net exports. The table

Question:

Calculate net exports and show the relationship between the government sector balance and net exports.
The table gives some data about the U.K. economy:
Item Billions of U.K. pounds
Consumption expenditure ……………………… 721
Exports of goods and services …………………. 277
Government expenditure ………………………. 230
Net taxes ……………………………………….. 127
Investment …………………………………….. 181
Saving ………………………………………….. 162