1899 plus 5 prozent

1.)  $${\mathtt{1\,899}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}\% = {\mathtt{1\,993.95}}$$

2.)  100%+5% = 105% = 105/100 = 1,05

       $${\mathtt{1\,899}}{\mathtt{\,\times\,}}{\mathtt{1.05}} = {\mathtt{1\,993.95}}$$

3,)   5% von 1899 =  $${\mathtt{1\,899}}{\mathtt{\,\times\,}}{\mathtt{5}}\% = {\frac{{\mathtt{1\,899}}}{{\mathtt{20}}}} = {\mathtt{94.95}}$$

       $${\mathtt{1\,899}}{\mathtt{\,\small\textbf+\,}}{\mathtt{94.95}} = {\mathtt{1\,993.95}}$$

Gruß radix !