-54.7% is the change from 830 to 376
Calculation steps:
[( 376 - 830 ) ÷ 830] x 100 = -54.7%
Formula
Percentage change = [(376 - 830) / 830] x 100
Subtract the new number by the original number
376 - 830 = -454
-454 ÷ 830 = -0.5469879518072289
-0.5469879518072289 x 100 = -54.7%