-56.11% is the change from 221 to 97
Calculation steps:
[( 97 - 221 ) ÷ 221] x 100 = -56.11%
Formula
Percentage change = [(97 - 221) / 221] x 100
Subtract the new number by the original number
97 - 221 = -124
-124 ÷ 221 = -0.5610859728506787
-0.5610859728506787 x 100 = -56.11%