-53.08% is the change from 827 to 388
Calculation steps:
[( 388 - 827 ) ÷ 827] x 100 = -53.08%
Formula
Percentage change = [(388 - 827) / 827] x 100
Subtract the new number by the original number
388 - 827 = -439
-439 ÷ 827 = -0.5308343409915357
-0.5308343409915357 x 100 = -53.08%