-36.91% is the change from 829 to 523
Calculation steps:
[( 523 - 829 ) ÷ 829] x 100 = -36.91%
Formula
Percentage change = [(523 - 829) / 829] x 100
Subtract the new number by the original number
523 - 829 = -306
-306 ÷ 829 = -0.3691194209891435
-0.3691194209891435 x 100 = -36.91%