-1.45% is the change from 829 to 817
Calculation steps:
[( 817 - 829 ) ÷ 829] x 100 = -1.45%
Formula
Percentage change = [(817 - 829) / 829] x 100
Subtract the new number by the original number
817 - 829 = -12
-12 ÷ 829 = -0.014475271411338963
-0.014475271411338963 x 100 = -1.45%