-50.18% is the change from 827 to 412
Calculation steps:
[( 412 - 827 ) ÷ 827] x 100 = -50.18%
Formula
Percentage change = [(412 - 827) / 827] x 100
Subtract the new number by the original number
412 - 827 = -415
-415 ÷ 827 = -0.501813784764208
-0.501813784764208 x 100 = -50.18%