-29.69% is the change from 943 to 663
Calculation steps:
[( 663 - 943 ) ÷ 943] x 100 = -29.69%
Formula
Percentage change = [(663 - 943) / 943] x 100
Subtract the new number by the original number
663 - 943 = -280
-280 ÷ 943 = -0.29692470837751855
-0.29692470837751855 x 100 = -29.69%