-66.32% is the change from 959 to 323
Calculation steps:
[( 323 - 959 ) ÷ 959] x 100 = -66.32%
Formula
Percentage change = [(323 - 959) / 959] x 100
Subtract the new number by the original number
323 - 959 = -636
-636 ÷ 959 = -0.6631908237747653
-0.6631908237747653 x 100 = -66.32%