The Table Given Below Shows the Levels of National Income

The table given below shows the levels of national income (Y) and the corresponding levels of saving (S) , investment (I) , export (X) , and import (M) of an open economy. Table 10.2
Consider the economy described in Table 10.2.Calculate the value of leakages from the economy when the economy is in equilibrium.

A) $770
B) $720
C) $790
D) $600
E) $410