-55.72% is the change from 621 to 275
Calculation steps:
[( 275 - 621 ) ÷ 621] x 100 = -55.72%
Formula
Percentage change = [(275 - 621) / 621] x 100
Subtract the new number by the original number
275 - 621 = -346
-346 ÷ 621 = -0.5571658615136876
-0.5571658615136876 x 100 = -55.72%