Number toLocaleString not working on Angular' tests

I have the following function on my application.

    convertToPercent(number) {
        if (!number) return 'N/A';
        return Number(number / 100).toLocaleString('pt-br', { style: 'percent' });
    }

and then I just created the following test scenario

    it('Should convertToPercent(10) return "10%" ' , () => { 
        expect(component.convertToPercent(10)).toEqual('10%');
    })

But then When I'm running the tests it's broken because 0.1 is not equal to 10%.

Does anyone have some idea of what it can be?

When running the application it's working.

Thank you, Lucas.