-98.51% is the change from 402 to 6
Calculation steps:
[( 6 - 402 ) ÷ 402] x 100 = -98.51%
Formula
Percentage change = [(6 - 402) / 402] x 100
Subtract the new number by the original number
6 - 402 = -396
-396 ÷ 402 = -0.9850746268656716
-0.9850746268656716 x 100 = -98.51%