-42.22% is the change from 450 to 260
Calculation steps:
[( 260 - 450 ) ÷ 450] x 100 = -42.22%
Formula
Percentage change = [(260 - 450) / 450] x 100
Subtract the new number by the original number
260 - 450 = -190
-190 ÷ 450 = -0.4222222222222222
-0.4222222222222222 x 100 = -42.22%