-27.98% is the change from 922 to 664
Calculation steps:
[( 664 - 922 ) ÷ 922] x 100 = -27.98%
Formula
Percentage change = [(664 - 922) / 922] x 100
Subtract the new number by the original number
664 - 922 = -258
-258 ÷ 922 = -0.279826464208243
-0.279826464208243 x 100 = -27.98%