-12.9% is the change from 403 to 351
Calculation steps:
[( 351 - 403 ) ÷ 403] x 100 = -12.9%
Formula
Percentage change = [(351 - 403) / 403] x 100
Subtract the new number by the original number
351 - 403 = -52
-52 ÷ 403 = -0.12903225806451613
-0.12903225806451613 x 100 = -12.9%