-44.44% is the change from 621 to 345
Calculation steps:
[( 345 - 621 ) ÷ 621] x 100 = -44.44%
Formula
Percentage change = [(345 - 621) / 621] x 100
Subtract the new number by the original number
345 - 621 = -276
-276 ÷ 621 = -0.4444444444444444
-0.4444444444444444 x 100 = -44.44%