The table below illustrates values for consumption spending, saving, and planned investment in a closed, private economy.

Aggregate Output Consumption Saving Planned Investment Planned Aggregate Unplanned Inventory Change Expenditure
(GDP = Y) (C) (S) (I) (AE = C + I)

430 432 -2 30 462 -32
450 448 2 30 478 -28
470 464 6 30 494 -24
490 480 10 30 510 -20
510 496 14 30 526 -16
530 512 18 30 542 -12
550 528 22 30 558 -8
570 544 26 30 574 -4
590 560 30 30 590 0
610 576 34 30 606 4

1) According to the table, the MPC is equal to what?

2) determine When saving equals investment.

3) find When planned aggregate expenditure is less than aggregate output.