-46.88% is the change from 817 to 434
Calculation steps:
[( 434 - 817 ) ÷ 817] x 100 = -46.88%
Formula
Percentage change = [(434 - 817) / 817] x 100
Subtract the new number by the original number
434 - 817 = -383
-383 ÷ 817 = -0.46878824969400246
-0.46878824969400246 x 100 = -46.88%