-27.51% is the change from 916 to 664
Calculation steps:
[( 664 - 916 ) ÷ 916] x 100 = -27.51%
Formula
Percentage change = [(664 - 916) / 916] x 100
Subtract the new number by the original number
664 - 916 = -252
-252 ÷ 916 = -0.27510917030567683
-0.27510917030567683 x 100 = -27.51%