-63.7% is the change from 606 to 220
Calculation steps:
[( 220 - 606 ) ÷ 606] x 100 = -63.7%
Formula
Percentage change = [(220 - 606) / 606] x 100
Subtract the new number by the original number
220 - 606 = -386
-386 ÷ 606 = -0.636963696369637
-0.636963696369637 x 100 = -63.7%