-26.82% is the change from 302 to 221
Calculation steps:
[( 221 - 302 ) ÷ 302] x 100 = -26.82%
Formula
Percentage change = [(221 - 302) / 302] x 100
Subtract the new number by the original number
221 - 302 = -81
-81 ÷ 302 = -0.2682119205298013
-0.2682119205298013 x 100 = -26.82%