-16.42% is the change from 402 to 336
Calculation steps:
[( 336 - 402 ) ÷ 402] x 100 = -16.42%
Formula
Percentage change = [(336 - 402) / 402] x 100
Subtract the new number by the original number
336 - 402 = -66
-66 ÷ 402 = -0.16417910447761194
-0.16417910447761194 x 100 = -16.42%