-54.29% is the change from 827 to 378
Calculation steps:
[( 378 - 827 ) ÷ 827] x 100 = -54.29%
Formula
Percentage change = [(378 - 827) / 827] x 100
Subtract the new number by the original number
378 - 827 = -449
-449 ÷ 827 = -0.5429262394195888
-0.5429262394195888 x 100 = -54.29%