-66.62% is the change from 665 to 222
Calculation steps:
[( 222 - 665 ) ÷ 665] x 100 = -66.62%
Formula
Percentage change = [(222 - 665) / 665] x 100
Subtract the new number by the original number
222 - 665 = -443
-443 ÷ 665 = -0.6661654135338346
-0.6661654135338346 x 100 = -66.62%