-5.92% is the change from 979 to 921
Calculation steps:
[( 921 - 979 ) ÷ 979] x 100 = -5.92%
Formula
Percentage change = [(921 - 979) / 979] x 100
Subtract the new number by the original number
921 - 979 = -58
-58 ÷ 979 = -0.059244126659857
-0.059244126659857 x 100 = -5.92%