-31.91% is the change from 984 to 670
Calculation steps:
[( 670 - 984 ) ÷ 984] x 100 = -31.91%
Formula
Percentage change = [(670 - 984) / 984] x 100
Subtract the new number by the original number
670 - 984 = -314
-314 ÷ 984 = -0.31910569105691056
-0.31910569105691056 x 100 = -31.91%