-27.45% is the change from 306 to 222
Calculation steps:
[( 222 - 306 ) ÷ 306] x 100 = -27.45%
Formula
Percentage change = [(222 - 306) / 306] x 100
Subtract the new number by the original number
222 - 306 = -84
-84 ÷ 306 = -0.27450980392156865
-0.27450980392156865 x 100 = -27.45%