-10.43% is the change from 470 to 421
Calculation steps:
[( 421 - 470 ) ÷ 470] x 100 = -10.43%
Formula
Percentage change = [(421 - 470) / 470] x 100
Subtract the new number by the original number
421 - 470 = -49
-49 ÷ 470 = -0.10425531914893617
-0.10425531914893617 x 100 = -10.43%