-29.9% is the change from 826 to 579
Calculation steps:
[( 579 - 826 ) ÷ 826] x 100 = -29.9%
Formula
Percentage change = [(579 - 826) / 826] x 100
Subtract the new number by the original number
579 - 826 = -247
-247 ÷ 826 = -0.2990314769975787
-0.2990314769975787 x 100 = -29.9%