-5.66% is the change from 830 to 783
Calculation steps:
[( 783 - 830 ) ÷ 830] x 100 = -5.66%
Formula
Percentage change = [(783 - 830) / 830] x 100
Subtract the new number by the original number
783 - 830 = -47
-47 ÷ 830 = -0.056626506024096385
-0.056626506024096385 x 100 = -5.66%