Simplify the following text for a Grade 7 native English-speaking person.
Original: In its heyday , The Herald had a circulation of almost 600,000 , but by the time of its 150th anniversary in 1990 , with the impact of evening television news and a higher proportion of people using cars to get home from work , The Heralds circulation had fallen below 200,000 .
Simplified: The Herald once sold almost 600,000 copies , but by the time of its 150th anniversary in 1990 it had fallen below 200,00 . This was caused by the impact of evening television news and more people using cars to get home from work .