-25.54% is the change from 646 to 481
Calculation steps:
[( 481 - 646 ) ÷ 646] x 100 = -25.54%
Formula
Percentage change = [(481 - 646) / 646] x 100
Subtract the new number by the original number
481 - 646 = -165
-165 ÷ 646 = -0.25541795665634676
-0.25541795665634676 x 100 = -25.54%