-49.63% is the change from 816 to 411
Calculation steps:
[( 411 - 816 ) ÷ 816] x 100 = -49.63%
Formula
Percentage change = [(411 - 816) / 816] x 100
Subtract the new number by the original number
411 - 816 = -405
-405 ÷ 816 = -0.4963235294117647
-0.4963235294117647 x 100 = -49.63%