-29.81% is the change from 946 to 664
Calculation steps:
[( 664 - 946 ) ÷ 946] x 100 = -29.81%
Formula
Percentage change = [(664 - 946) / 946] x 100
Subtract the new number by the original number
664 - 946 = -282
-282 ÷ 946 = -0.29809725158562367
-0.29809725158562367 x 100 = -29.81%