-27.14% is the change from 910 to 663
Calculation steps:
[( 663 - 910 ) ÷ 910] x 100 = -27.14%
Formula
Percentage change = [(663 - 910) / 910] x 100
Subtract the new number by the original number
663 - 910 = -247
-247 ÷ 910 = -0.2714285714285714
-0.2714285714285714 x 100 = -27.14%