-55.12% is the change from 635 to 285
Calculation steps:
[( 285 - 635 ) ÷ 635] x 100 = -55.12%
Formula
Percentage change = [(285 - 635) / 635] x 100
Subtract the new number by the original number
285 - 635 = -350
-350 ÷ 635 = -0.5511811023622047
-0.5511811023622047 x 100 = -55.12%