-39.02% is the change from 979 to 597
Calculation steps:
[( 597 - 979 ) ÷ 979] x 100 = -39.02%
Formula
Percentage change = [(597 - 979) / 979] x 100
Subtract the new number by the original number
597 - 979 = -382
-382 ÷ 979 = -0.390194075587334
-0.390194075587334 x 100 = -39.02%