-19.49% is the change from 780 to 628
Calculation steps:
[( 628 - 780 ) ÷ 780] x 100 = -19.49%
Formula
Percentage change = [(628 - 780) / 780] x 100
Subtract the new number by the original number
628 - 780 = -152
-152 ÷ 780 = -0.19487179487179487
-0.19487179487179487 x 100 = -19.49%