-21.24% is the change from 579 to 456
Calculation steps:
[( 456 - 579 ) ÷ 579] x 100 = -21.24%
Formula
Percentage change = [(456 - 579) / 579] x 100
Subtract the new number by the original number
456 - 579 = -123
-123 ÷ 579 = -0.21243523316062177
-0.21243523316062177 x 100 = -21.24%