01
A raise reaches backwards on one path and not the other
Statutory gratuity is computed at exit on the final basic wage, for every year of service. A ten per cent raise in year seven therefore restates the accrual for years one to six as well. A scheme contribution is fixed at the wage of the month it was paid and is never revisited. On any rising salary this is the largest single difference between the two paths, and it is invisible in a flat-salary comparison.