-65.51% is the change from 606 to 209
Calculation steps:
[( 209 - 606 ) ÷ 606] x 100 = -65.51%
Formula
Percentage change = [(209 - 606) / 606] x 100
Subtract the new number by the original number
209 - 606 = -397
-397 ÷ 606 = -0.6551155115511551
-0.6551155115511551 x 100 = -65.51%