For time-keeping, the employer may adopt a fraction or decimal part of an hour, no larger than a quarter hour, and apply it when calculating working time for employees who arrive after their appointed start or leave before their appointed finish, unless they have a reasonable cause that they promptly tell the employer about. An employer that adopts such a fraction may use the same fraction to calculate overtime.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.