-64.09% is the change from 635 to 228
Calculation steps:
[( 228 - 635 ) ÷ 635] x 100 = -64.09%
Formula
Percentage change = [(228 - 635) / 635] x 100
Subtract the new number by the original number
228 - 635 = -407
-407 ÷ 635 = -0.6409448818897637
-0.6409448818897637 x 100 = -64.09%