-64.53% is the change from 671 to 238
Calculation steps:
[( 238 - 671 ) ÷ 671] x 100 = -64.53%
Formula
Percentage change = [(238 - 671) / 671] x 100
Subtract the new number by the original number
238 - 671 = -433
-433 ÷ 671 = -0.6453055141579732
-0.6453055141579732 x 100 = -64.53%