Context
With $ 1.000.000,00 (an aguinaldo or accumulated savings) the rate you choose changes the result by several dollars.
For historical reference: a week ago $ 1.000.000,00 bought US$ 629,76; a month ago, US$ 649,48; over the last 30 days, between US$ 629,49 and US$ 651,04 (daily selling data from argentinadatos.com).
Keep in mind: It is legal and on the record. The actual price depends on the bond, the settlement period and your broker's fees.
The other way around? Come in. MEP dollar a pesos.