-13.41% is the change from 634 to 549
Calculation steps:
[( 549 - 634 ) ÷ 634] x 100 = -13.41%
Formula
Percentage change = [(549 - 634) / 634] x 100
Subtract the new number by the original number
549 - 634 = -85
-85 ÷ 634 = -0.13406940063091483
-0.13406940063091483 x 100 = -13.41%