-68.64% is the change from 979 to 307
Calculation steps:
[( 307 - 979 ) ÷ 979] x 100 = -68.64%
Formula
Percentage change = [(307 - 979) / 979] x 100
Subtract the new number by the original number
307 - 979 = -672
-672 ÷ 979 = -0.686414708886619
-0.686414708886619 x 100 = -68.64%