-63.59% is the change from 607 to 221
Calculation steps:
[( 221 - 607 ) ÷ 607] x 100 = -63.59%
Formula
Percentage change = [(221 - 607) / 607] x 100
Subtract the new number by the original number
221 - 607 = -386
-386 ÷ 607 = -0.6359143327841845
-0.6359143327841845 x 100 = -63.59%