-29.66% is the change from 944 to 664
Calculation steps:
[( 664 - 944 ) ÷ 944] x 100 = -29.66%
Formula
Percentage change = [(664 - 944) / 944] x 100
Subtract the new number by the original number
664 - 944 = -280
-280 ÷ 944 = -0.2966101694915254
-0.2966101694915254 x 100 = -29.66%