The figure below presents the data for a grid leveling on a piece of land. It is required to:

$1-$ Compute the cut volume to level the ground at formation level $22\mathrm{.}75m$ around the existing building. $($Start @ South$-$West corner and continue on N$-$S lines follow zigzag pattern$)$

$2-$ On the given plan view, show the zones of cut and fill if grading elevation changed to $25\mathrm{.}00($No volume calculations are required