-24.75% is the change from 800 to 602
Calculation steps:
[( 602 - 800 ) ÷ 800] x 100 = -24.75%
Formula
Percentage change = [(602 - 800) / 800] x 100
Subtract the new number by the original number
602 - 800 = -198
-198 ÷ 800 = -0.2475
-0.2475 x 100 = -24.75%