Trent's salary used to be $143,020. After changing the amount of time he works, he has begun earning $78,661. By what percent did Trent's salary decrease?

The salary decreased by 45%

Step-by-step explanation:

Given,

The previous salary of Trent is $143,020

The current salary of Trent is $78,661

The decrease in salary is ($143,020 - $78,661) = $64,359

When he used to get $143,020, the decrease in salary is = $64,359

When he used to get $1, the decrease in salary is = $64,359/$143,020

When he used to get $100, the decrease in salary is = $ (64,359/143,020) * 100

= 45%

Therefore, there is a decrease in salary by 45%.