-37.39% is the change from 821 to 514
Calculation steps:
[( 514 - 821 ) ÷ 821] x 100 = -37.39%
Formula
Percentage change = [(514 - 821) / 821] x 100
Subtract the new number by the original number
514 - 821 = -307
-307 ÷ 821 = -0.37393422655298414
-0.37393422655298414 x 100 = -37.39%