-51.65% is the change from 635 to 307
Calculation steps:
[( 307 - 635 ) ÷ 635] x 100 = -51.65%
Formula
Percentage change = [(307 - 635) / 635] x 100
Subtract the new number by the original number
307 - 635 = -328
-328 ÷ 635 = -0.5165354330708661
-0.5165354330708661 x 100 = -51.65%