-37.79% is the change from 979 to 609
Calculation steps:
[( 609 - 979 ) ÷ 979] x 100 = -37.79%
Formula
Percentage change = [(609 - 979) / 979] x 100
Subtract the new number by the original number
609 - 979 = -370
-370 ÷ 979 = -0.37793667007150156
-0.37793667007150156 x 100 = -37.79%