-95.53% is the change from 470 to 21
Calculation steps:
[( 21 - 470 ) ÷ 470] x 100 = -95.53%
Formula
Percentage change = [(21 - 470) / 470] x 100
Subtract the new number by the original number
21 - 470 = -449
-449 ÷ 470 = -0.9553191489361702
-0.9553191489361702 x 100 = -95.53%