-51.13% is the change from 620 to 303
Calculation steps:
[( 303 - 620 ) ÷ 620] x 100 = -51.13%
Formula
Percentage change = [(303 - 620) / 620] x 100
Subtract the new number by the original number
303 - 620 = -317
-317 ÷ 620 = -0.5112903225806451
-0.5112903225806451 x 100 = -51.13%