-30.38% is the change from 497 to 346
Calculation steps:
[( 346 - 497 ) ÷ 497] x 100 = -30.38%
Formula
Percentage change = [(346 - 497) / 497] x 100
Subtract the new number by the original number
346 - 497 = -151
-151 ÷ 497 = -0.3038229376257545
-0.3038229376257545 x 100 = -30.38%