-68.6% is the change from 984 to 309
Calculation steps:
[( 309 - 984 ) ÷ 984] x 100 = -68.6%
Formula
Percentage change = [(309 - 984) / 984] x 100
Subtract the new number by the original number
309 - 984 = -675
-675 ÷ 984 = -0.6859756097560976
-0.6859756097560976 x 100 = -68.6%