-6.11% is the change from 818 to 768
Calculation steps:
[( 768 - 818 ) ÷ 818] x 100 = -6.11%
Formula
Percentage change = [(768 - 818) / 818] x 100
Subtract the new number by the original number
768 - 818 = -50
-50 ÷ 818 = -0.061124694376528114
-0.061124694376528114 x 100 = -6.11%