"(4)... the tribunal shall make an award of compensation for unfair dismissal (calculated in accordance with sections 118 to 127) to be paid by the employer to the employee."
"(a) a basic award (calculated in accordance with sections 119 to 122 and 126),
"(1) ... such amount as the tribunal considers just and equitable in the circumstances having regard to the loss sustained by the complainant in consequence of the dismissal in so far as that loss is attributable to action taken by the employer."