Why did you subtract the control value from the titrant in breaker 1 and beaker 2?

Subtracting the control value from the titrant in beaker 1 and beaker 2 allows for the isolation of the effect of the experimental variable by accounting for any baseline or inherent differences. This ensures that the results accurately reflect the influence of the titrant alone, removing any potential interference from the control conditions. By doing this, the analysis becomes more precise, leading to more reliable conclusions about the titrant's impact.