-50.42% is the change from 827 to 410
Calculation steps:
[( 410 - 827 ) ÷ 827] x 100 = -50.42%
Formula
Percentage change = [(410 - 827) / 827] x 100
Subtract the new number by the original number
410 - 827 = -417
-417 ÷ 827 = -0.5042321644498187
-0.5042321644498187 x 100 = -50.42%