-66.06% is the change from 660 to 224
Calculation steps:
[( 224 - 660 ) ÷ 660] x 100 = -66.06%
Formula
Percentage change = [(224 - 660) / 660] x 100
Subtract the new number by the original number
224 - 660 = -436
-436 ÷ 660 = -0.6606060606060606
-0.6606060606060606 x 100 = -66.06%