-45.95% is the change from 777 to 420
Calculation steps:
[( 420 - 777 ) ÷ 777] x 100 = -45.95%
Formula
Percentage change = [(420 - 777) / 777] x 100
Subtract the new number by the original number
420 - 777 = -357
-357 ÷ 777 = -0.4594594594594595
-0.4594594594594595 x 100 = -45.95%