-4.46% is the change from 471 to 450
Calculation steps:
[( 450 - 471 ) ÷ 471] x 100 = -4.46%
Formula
Percentage change = [(450 - 471) / 471] x 100
Subtract the new number by the original number
450 - 471 = -21
-21 ÷ 471 = -0.044585987261146494
-0.044585987261146494 x 100 = -4.46%