-31.39% is the change from 497 to 341
Calculation steps:
[( 341 - 497 ) ÷ 497] x 100 = -31.39%
Formula
Percentage change = [(341 - 497) / 497] x 100
Subtract the new number by the original number
341 - 497 = -156
-156 ÷ 497 = -0.31388329979879276
-0.31388329979879276 x 100 = -31.39%