-71.48% is the change from 817 to 233
Calculation steps:
[( 233 - 817 ) ÷ 817] x 100 = -71.48%
Formula
Percentage change = [(233 - 817) / 817] x 100
Subtract the new number by the original number
233 - 817 = -584
-584 ÷ 817 = -0.7148102815177478
-0.7148102815177478 x 100 = -71.48%