Complex sentence: By 1990, the inti had itself suffered from such high inflation that the nuevo sol ("new sol") was adopted on 1 July 1991, replacing the inti at an exchange rate of a million to one.
Split into simpler sentences: By 1990, the inti had itself suffered from high inflation. One inti en millones was equal to 1,000,000 intis and hence to one new sol. The "nuevo sol" ("new sol") was adopted on 1 July 1991, replacing the inti at an exchange rate of a million to one.