-43.48% is the change from 621 to 351
Calculation steps:
[( 351 - 621 ) ÷ 621] x 100 = -43.48%
Formula
Percentage change = [(351 - 621) / 621] x 100
Subtract the new number by the original number
351 - 621 = -270
-270 ÷ 621 = -0.43478260869565216
-0.43478260869565216 x 100 = -43.48%