-66.21% is the change from 654 to 221
Calculation steps:
[( 221 - 654 ) ÷ 654] x 100 = -66.21%
Formula
Percentage change = [(221 - 654) / 654] x 100
Subtract the new number by the original number
221 - 654 = -433
-433 ÷ 654 = -0.6620795107033639
-0.6620795107033639 x 100 = -66.21%