-47.86% is the change from 817 to 426
Calculation steps:
[( 426 - 817 ) ÷ 817] x 100 = -47.86%
Formula
Percentage change = [(426 - 817) / 817] x 100
Subtract the new number by the original number
426 - 817 = -391
-391 ÷ 817 = -0.4785801713586291
-0.4785801713586291 x 100 = -47.86%