-42.61% is the change from 284 to 163
Calculation steps:
[( 163 - 284 ) ÷ 284] x 100 = -42.61%
Formula
Percentage change = [(163 - 284) / 284] x 100
Subtract the new number by the original number
163 - 284 = -121
-121 ÷ 284 = -0.426056338028169
-0.426056338028169 x 100 = -42.61%