-67.95% is the change from 964 to 309
Calculation steps:
[( 309 - 964 ) ÷ 964] x 100 = -67.95%
Formula
Percentage change = [(309 - 964) / 964] x 100
Subtract the new number by the original number
309 - 964 = -655
-655 ÷ 964 = -0.6794605809128631
-0.6794605809128631 x 100 = -67.95%