-7.47% is the change from 843 to 780
Calculation steps:
[( 780 - 843 ) ÷ 843] x 100 = -7.47%
Formula
Percentage change = [(780 - 843) / 843] x 100
Subtract the new number by the original number
780 - 843 = -63
-63 ÷ 843 = -0.07473309608540925
-0.07473309608540925 x 100 = -7.47%