-41.25% is the change from 817 to 480
Calculation steps:
[( 480 - 817 ) ÷ 817] x 100 = -41.25%
Formula
Percentage change = [(480 - 817) / 817] x 100
Subtract the new number by the original number
480 - 817 = -337
-337 ÷ 817 = -0.412484700122399
-0.412484700122399 x 100 = -41.25%