-6.73% is the change from 431 to 402
Calculation steps:
[( 402 - 431 ) ÷ 431] x 100 = -6.73%
Formula
Percentage change = [(402 - 431) / 431] x 100
Subtract the new number by the original number
402 - 431 = -29
-29 ÷ 431 = -0.06728538283062645
-0.06728538283062645 x 100 = -6.73%