-19.66% is the change from 773 to 621
Calculation steps:
[( 621 - 773 ) ÷ 773] x 100 = -19.66%
Formula
Percentage change = [(621 - 773) / 773] x 100
Subtract the new number by the original number
621 - 773 = -152
-152 ÷ 773 = -0.19663648124191463
-0.19663648124191463 x 100 = -19.66%