-31.35% is the change from 976 to 670
Calculation steps:
[( 670 - 976 ) ÷ 976] x 100 = -31.35%
Formula
Percentage change = [(670 - 976) / 976] x 100
Subtract the new number by the original number
670 - 976 = -306
-306 ÷ 976 = -0.3135245901639344
-0.3135245901639344 x 100 = -31.35%