-45.98% is the change from 635 to 343
Calculation steps:
[( 343 - 635 ) ÷ 635] x 100 = -45.98%
Formula
Percentage change = [(343 - 635) / 635] x 100
Subtract the new number by the original number
343 - 635 = -292
-292 ÷ 635 = -0.45984251968503936
-0.45984251968503936 x 100 = -45.98%