-38.31% is the change from 402 to 248
Calculation steps:
[( 248 - 402 ) ÷ 402] x 100 = -38.31%
Formula
Percentage change = [(248 - 402) / 402] x 100
Subtract the new number by the original number
248 - 402 = -154
-154 ÷ 402 = -0.38308457711442784
-0.38308457711442784 x 100 = -38.31%