-26.06% is the change from 637 to 471
Calculation steps:
[( 471 - 637 ) ÷ 637] x 100 = -26.06%
Formula
Percentage change = [(471 - 637) / 637] x 100
Subtract the new number by the original number
471 - 637 = -166
-166 ÷ 637 = -0.260596546310832
-0.260596546310832 x 100 = -26.06%