-29.59% is the change from 943 to 664
Calculation steps:
[( 664 - 943 ) ÷ 943] x 100 = -29.59%
Formula
Percentage change = [(664 - 943) / 943] x 100
Subtract the new number by the original number
664 - 943 = -279
-279 ÷ 943 = -0.295864262990456
-0.295864262990456 x 100 = -29.59%