-49.56% is the change from 797 to 402
Calculation steps:
[( 402 - 797 ) ÷ 797] x 100 = -49.56%
Formula
Percentage change = [(402 - 797) / 797] x 100
Subtract the new number by the original number
402 - 797 = -395
-395 ÷ 797 = -0.49560853199498117
-0.49560853199498117 x 100 = -49.56%