Raise your car, and see under neath. Quite adjacent to drain bolt of Cvt fluid, the word "Check" is inscribed there. You can check please.
Further, when you refill fluid through TC marking bolt, start engine and shift from P to B with 15 second interval, twice or thrice, then raise the car while engine is idling, open the drain bolt and drain out extra fluid till it starts dripling.
I done the same procedure with my Belta at Toyota Islamabad.
Their engineer also authenticated while referring to Belta original manual. Regards.