-1.88% is the change from 800 to 785
Calculation steps:
[( 785 - 800 ) ÷ 800] x 100 = -1.88%
Formula
Percentage change = [(785 - 800) / 800] x 100
Subtract the new number by the original number
785 - 800 = -15
-15 ÷ 800 = -0.01875
-0.01875 x 100 = -1.88%