-36.82% is the change from 812 to 513
Calculation steps:
[( 513 - 812 ) ÷ 812] x 100 = -36.82%
Formula
Percentage change = [(513 - 812) / 812] x 100
Subtract the new number by the original number
513 - 812 = -299
-299 ÷ 812 = -0.3682266009852217
-0.3682266009852217 x 100 = -36.82%