-64.04% is the change from 609 to 219
Calculation steps:
[( 219 - 609 ) ÷ 609] x 100 = -64.04%
Formula
Percentage change = [(219 - 609) / 609] x 100
Subtract the new number by the original number
219 - 609 = -390
-390 ÷ 609 = -0.6403940886699507
-0.6403940886699507 x 100 = -64.04%