15% von 1.49 €

$${\mathtt{1.49}}{\mathtt{\,\times\,}}{\mathtt{15}}\% = {\frac{{\mathtt{447}}}{{\mathtt{2\,000}}}} = {\mathtt{0.223\: \!5}}$$  =  0,22 €    (gerundet)

$${\frac{{\mathtt{1.49}}{euro}{\mathtt{\,\times\,}}{\mathtt{15}}}{{\mathtt{100}}}} = {\mathtt{0.223\: \!5}}{euro}$$  =  0,22 €     (gerundet)

$${\mathtt{1.49}}{euro}{\mathtt{\,\times\,}}{\mathtt{0.15}} = {\mathtt{0.223\: \!5}}{euro}$$  = 0,22 €   (gerundet)

Gruß radix !