-25.48% is the change from 891 to 664
Calculation steps:
[( 664 - 891 ) ÷ 891] x 100 = -25.48%
Formula
Percentage change = [(664 - 891) / 891] x 100
Subtract the new number by the original number
664 - 891 = -227
-227 ÷ 891 = -0.2547699214365881
-0.2547699214365881 x 100 = -25.48%