-48.98% is the change from 635 to 324
Calculation steps:
[( 324 - 635 ) ÷ 635] x 100 = -48.98%
Formula
Percentage change = [(324 - 635) / 635] x 100
Subtract the new number by the original number
324 - 635 = -311
-311 ÷ 635 = -0.48976377952755906
-0.48976377952755906 x 100 = -48.98%