-45.53% is the change from 828 to 451
Calculation steps:
[( 451 - 828 ) ÷ 828] x 100 = -45.53%
Formula
Percentage change = [(451 - 828) / 828] x 100
Subtract the new number by the original number
451 - 828 = -377
-377 ÷ 828 = -0.4553140096618358
-0.4553140096618358 x 100 = -45.53%