-51.37% is the change from 621 to 302
Calculation steps:
[( 302 - 621 ) ÷ 621] x 100 = -51.37%
Formula
Percentage change = [(302 - 621) / 621] x 100
Subtract the new number by the original number
302 - 621 = -319
-319 ÷ 621 = -0.5136876006441223
-0.5136876006441223 x 100 = -51.37%