-45.09% is the change from 621 to 341
Calculation steps:
[( 341 - 621 ) ÷ 621] x 100 = -45.09%
Formula
Percentage change = [(341 - 621) / 621] x 100
Subtract the new number by the original number
341 - 621 = -280
-280 ÷ 621 = -0.45088566827697263
-0.45088566827697263 x 100 = -45.09%