-43.8% is the change from 621 to 349
Calculation steps:
[( 349 - 621 ) ÷ 621] x 100 = -43.8%
Formula
Percentage change = [(349 - 621) / 621] x 100
Subtract the new number by the original number
349 - 621 = -272
-272 ÷ 621 = -0.43800322061191627
-0.43800322061191627 x 100 = -43.8%