-37% is the change from 919 to 579
Calculation steps:
[( 579 - 919 ) ÷ 919] x 100 = -37%
Formula
Percentage change = [(579 - 919) / 919] x 100
Subtract the new number by the original number
579 - 919 = -340
-340 ÷ 919 = -0.36996735582154516
-0.36996735582154516 x 100 = -37%