-25.04% is the change from 643 to 482
Calculation steps:
[( 482 - 643 ) ÷ 643] x 100 = -25.04%
Formula
Percentage change = [(482 - 643) / 643] x 100
Subtract the new number by the original number
482 - 643 = -161
-161 ÷ 643 = -0.25038880248833595
-0.25038880248833595 x 100 = -25.04%