-7.69% is the change from 819 to 756
Calculation steps:
[( 756 - 819 ) ÷ 819] x 100 = -7.69%
Formula
Percentage change = [(756 - 819) / 819] x 100
Subtract the new number by the original number
756 - 819 = -63
-63 ÷ 819 = -0.07692307692307693
-0.07692307692307693 x 100 = -7.69%