-45.08% is the change from 579 to 318
Calculation steps:
[( 318 - 579 ) ÷ 579] x 100 = -45.08%
Formula
Percentage change = [(318 - 579) / 579] x 100
Subtract the new number by the original number
318 - 579 = -261
-261 ÷ 579 = -0.45077720207253885
-0.45077720207253885 x 100 = -45.08%