-4.14% is the change from 821 to 787
Calculation steps:
[( 787 - 821 ) ÷ 821] x 100 = -4.14%
Formula
Percentage change = [(787 - 821) / 821] x 100
Subtract the new number by the original number
787 - 821 = -34
-34 ÷ 821 = -0.04141291108404385
-0.04141291108404385 x 100 = -4.14%