-54.49% is the change from 479 to 218
Calculation steps:
[( 218 - 479 ) ÷ 479] x 100 = -54.49%
Formula
Percentage change = [(218 - 479) / 479] x 100
Subtract the new number by the original number
218 - 479 = -261
-261 ÷ 479 = -0.5448851774530271
-0.5448851774530271 x 100 = -54.49%