-37.21% is the change from 825 to 518
Calculation steps:
[( 518 - 825 ) ÷ 825] x 100 = -37.21%
Formula
Percentage change = [(518 - 825) / 825] x 100
Subtract the new number by the original number
518 - 825 = -307
-307 ÷ 825 = -0.37212121212121213
-0.37212121212121213 x 100 = -37.21%