-16.51% is the change from 830 to 693
Calculation steps:
[( 693 - 830 ) ÷ 830] x 100 = -16.51%
Formula
Percentage change = [(693 - 830) / 830] x 100
Subtract the new number by the original number
693 - 830 = -137
-137 ÷ 830 = -0.1650602409638554
-0.1650602409638554 x 100 = -16.51%