-35.74% is the change from 831 to 534
Calculation steps:
[( 534 - 831 ) ÷ 831] x 100 = -35.74%
Formula
Percentage change = [(534 - 831) / 831] x 100
Subtract the new number by the original number
534 - 831 = -297
-297 ÷ 831 = -0.3574007220216607
-0.3574007220216607 x 100 = -35.74%