-62.35% is the change from 587 to 221
Calculation steps:
[( 221 - 587 ) ÷ 587] x 100 = -62.35%
Formula
Percentage change = [(221 - 587) / 587] x 100
Subtract the new number by the original number
221 - 587 = -366
-366 ÷ 587 = -0.6235093696763203
-0.6235093696763203 x 100 = -62.35%