-63.53% is the change from 606 to 221
Calculation steps:
[( 221 - 606 ) ÷ 606] x 100 = -63.53%
Formula
Percentage change = [(221 - 606) / 606] x 100
Subtract the new number by the original number
221 - 606 = -385
-385 ÷ 606 = -0.6353135313531353
-0.6353135313531353 x 100 = -63.53%