-55.51% is the change from 490 to 218
Calculation steps:
[( 218 - 490 ) ÷ 490] x 100 = -55.51%
Formula
Percentage change = [(218 - 490) / 490] x 100
Subtract the new number by the original number
218 - 490 = -272
-272 ÷ 490 = -0.5551020408163265
-0.5551020408163265 x 100 = -55.51%