-45.59% is the change from 827 to 450
Calculation steps:
[( 450 - 827 ) ÷ 827] x 100 = -45.59%
Formula
Percentage change = [(450 - 827) / 827] x 100
Subtract the new number by the original number
450 - 827 = -377
-377 ÷ 827 = -0.4558645707376058
-0.4558645707376058 x 100 = -45.59%