-59.28% is the change from 221 to 90
Calculation steps:
[( 90 - 221 ) ÷ 221] x 100 = -59.28%
Formula
Percentage change = [(90 - 221) / 221] x 100
Subtract the new number by the original number
90 - 221 = -131
-131 ÷ 221 = -0.5927601809954751
-0.5927601809954751 x 100 = -59.28%