-39.06% is the change from 832 to 507
Calculation steps:
[( 507 - 832 ) ÷ 832] x 100 = -39.06%
Formula
Percentage change = [(507 - 832) / 832] x 100
Subtract the new number by the original number
507 - 832 = -325
-325 ÷ 832 = -0.390625
-0.390625 x 100 = -39.06%