-47.15% is the change from 579 to 306
Calculation steps:
[( 306 - 579 ) ÷ 579] x 100 = -47.15%
Formula
Percentage change = [(306 - 579) / 579] x 100
Subtract the new number by the original number
306 - 579 = -273
-273 ÷ 579 = -0.47150259067357514
-0.47150259067357514 x 100 = -47.15%