-30.66% is the change from 910 to 631
Calculation steps:
[( 631 - 910 ) ÷ 910] x 100 = -30.66%
Formula
Percentage change = [(631 - 910) / 910] x 100
Subtract the new number by the original number
631 - 910 = -279
-279 ÷ 910 = -0.3065934065934066
-0.3065934065934066 x 100 = -30.66%