-55.6% is the change from 491 to 218
Calculation steps:
[( 218 - 491 ) ÷ 491] x 100 = -55.6%
Formula
Percentage change = [(218 - 491) / 491] x 100
Subtract the new number by the original number
218 - 491 = -273
-273 ÷ 491 = -0.5560081466395111
-0.5560081466395111 x 100 = -55.6%