-40.14% is the change from 284 to 170
Calculation steps:
[( 170 - 284 ) ÷ 284] x 100 = -40.14%
Formula
Percentage change = [(170 - 284) / 284] x 100
Subtract the new number by the original number
170 - 284 = -114
-114 ÷ 284 = -0.4014084507042254
-0.4014084507042254 x 100 = -40.14%