-49.44% is the change from 621 to 314
Calculation steps:
[( 314 - 621 ) ÷ 621] x 100 = -49.44%
Formula
Percentage change = [(314 - 621) / 621] x 100
Subtract the new number by the original number
314 - 621 = -307
-307 ÷ 621 = -0.4943639291465378
-0.4943639291465378 x 100 = -49.44%