(((365 * 1.5) * (0.5 + 50 / 50)) - d) * ((1.5 + 6.5 * (50 / 75)) * 0.6) = (((247.5 * 1.5) * (0.5 + 50 / 50)) - d) * (1.5 + 6.5 * (50 / 75))

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