-30.28% is the change from 961 to 670
Calculation steps:
[( 670 - 961 ) ÷ 961] x 100 = -30.28%
Formula
Percentage change = [(670 - 961) / 961] x 100
Subtract the new number by the original number
670 - 961 = -291
-291 ÷ 961 = -0.3028095733610822
-0.3028095733610822 x 100 = -30.28%