Provide point and interval predictions (or forecasts) of tomorrow's clearing balance

How do I calculate the point prediction?

$21,697,208 -$10,243,791 $37,844,391 -$3,648,650 $3,894,647 -$32,977,193 $30,056,844 $81,001,561 $73,625,609 $5,027,402 $60,311,999 $117,896,711 $57,425,429 $34,537,810 $21,449,620 $29,981,227 -$1,672,896 $28,157,292 $5,757,982 $31,467,912 $28,030,404 $24,650,044 $10,019,384 $40,873,515 $31,238,163 -$8,448,464 $61,116,423 $21,886,686 $59,296,515 $23,307,164 $53,479,593 -$4,794,679 $27,584,465 $29,387,165 $93,434,414 $38,561,233 $24,066,627 $8,059,567 -$31,816,724 $65,555,653