-42.75% is the change from 821 to 470
Calculation steps:
[( 470 - 821 ) ÷ 821] x 100 = -42.75%
Formula
Percentage change = [(470 - 821) / 821] x 100
Subtract the new number by the original number
470 - 821 = -351
-351 ÷ 821 = -0.42752740560292324
-0.42752740560292324 x 100 = -42.75%