-64.32% is the change from 964 to 344
Calculation steps:
[( 344 - 964 ) ÷ 964] x 100 = -64.32%
Formula
Percentage change = [(344 - 964) / 964] x 100
Subtract the new number by the original number
344 - 964 = -620
-620 ÷ 964 = -0.6431535269709544
-0.6431535269709544 x 100 = -64.32%