-49.2% is the change from 811 to 412
Calculation steps:
[( 412 - 811 ) ÷ 811] x 100 = -49.2%
Formula
Percentage change = [(412 - 811) / 811] x 100
Subtract the new number by the original number
412 - 811 = -399
-399 ÷ 811 = -0.4919852034525277
-0.4919852034525277 x 100 = -49.2%