-49.21% is the change from 634 to 322
Calculation steps:
[( 322 - 634 ) ÷ 634] x 100 = -49.21%
Formula
Percentage change = [(322 - 634) / 634] x 100
Subtract the new number by the original number
322 - 634 = -312
-312 ÷ 634 = -0.4921135646687697
-0.4921135646687697 x 100 = -49.21%