-3.4% is the change from 795 to 768
Calculation steps:
[( 768 - 795 ) ÷ 795] x 100 = -3.4%
Formula
Percentage change = [(768 - 795) / 795] x 100
Subtract the new number by the original number
768 - 795 = -27
-27 ÷ 795 = -0.033962264150943396
-0.033962264150943396 x 100 = -3.4%