-15.92% is the change from 402 to 338
Calculation steps:
[( 338 - 402 ) ÷ 402] x 100 = -15.92%
Formula
Percentage change = [(338 - 402) / 402] x 100
Subtract the new number by the original number
338 - 402 = -64
-64 ÷ 402 = -0.15920398009950248
-0.15920398009950248 x 100 = -15.92%