-60.37% is the change from 641 to 254
Calculation steps:
[( 254 - 641 ) ÷ 641] x 100 = -60.37%
Formula
Percentage change = [(254 - 641) / 641] x 100
Subtract the new number by the original number
254 - 641 = -387
-387 ÷ 641 = -0.6037441497659907
-0.6037441497659907 x 100 = -60.37%