Bar Graph DI

Scenario: Comparing heights of two bars (e.g., Sales A vs Sales B).

The Strategy: Instead of reading values (45 and 32) and subtracting (45-32=13), Look at the Gap.

Map the gap directly to the grid lines. If one grid unit = 5, and gap is roughly 2.5 units, difference is ~12.5.

Scenario: A single bar represents Total (800). It's split into color A (bottom) and color B (top).

The Trap: Reading the top value of B as B's value.

The Rule:
Bottom Part (A) = Reading corresponding to its top.
Top Part (B) = Top Value - Bottom Value.

Scenario: Bars can go Up (Positive) or Down (Negative) from the X-axis.

Handling: Treat X-axis as Zero.
Up = Profit/Surplus (+).
Down = Loss/Deficit (-).
Total Net: Sum all (+), Sum all (-), then combine.