-66.62% is the change from 671 to 224
Calculation steps:
[( 224 - 671 ) ÷ 671] x 100 = -66.62%
Formula
Percentage change = [(224 - 671) / 671] x 100
Subtract the new number by the original number
224 - 671 = -447
-447 ÷ 671 = -0.6661698956780924
-0.6661698956780924 x 100 = -66.62%