-63.65% is the change from 608 to 221
Calculation steps:
[( 221 - 608 ) ÷ 608] x 100 = -63.65%
Formula
Percentage change = [(221 - 608) / 608] x 100
Subtract the new number by the original number
221 - 608 = -387
-387 ÷ 608 = -0.6365131578947368
-0.6365131578947368 x 100 = -63.65%