-8.55% is the change from 819 to 749
Calculation steps:
[( 749 - 819 ) ÷ 819] x 100 = -8.55%
Formula
Percentage change = [(749 - 819) / 819] x 100
Subtract the new number by the original number
749 - 819 = -70
-70 ÷ 819 = -0.08547008547008547
-0.08547008547008547 x 100 = -8.55%