-66% is the change from 450 to 153
Calculation steps:
[( 153 - 450 ) ÷ 450] x 100 = -66%
Formula
Percentage change = [(153 - 450) / 450] x 100
Subtract the new number by the original number
153 - 450 = -297
-297 ÷ 450 = -0.66
-0.66 x 100 = -66%
Example