-29.94% is the change from 905 to 634
Calculation steps:
[( 634 - 905 ) ÷ 905] x 100 = -29.94%
Formula
Percentage change = [(634 - 905) / 905] x 100
Subtract the new number by the original number
634 - 905 = -271
-271 ÷ 905 = -0.2994475138121547
-0.2994475138121547 x 100 = -29.94%