Percentage of Repeaters Formula

Equation for calculate percentage of repeaters is,

PR^t_i = [R^t_i ÷ E^t_i] × 100

where,
R^t_i = Number of pupils repeating grade i in school year t,
E^t_i = Number of pupils enrolled in grade i, in school year t,
PR^t_i = Percentage of repeaters in grade i, in school year t