-37.97% is the change from 827 to 513
Calculation steps:
[( 513 - 827 ) ÷ 827] x 100 = -37.97%
Formula
Percentage change = [(513 - 827) / 827] x 100
Subtract the new number by the original number
513 - 827 = -314
-314 ÷ 827 = -0.37968561064087064
-0.37968561064087064 x 100 = -37.97%