-33.64% is the change from 217 to 144
Calculation steps:
[( 144 - 217 ) ÷ 217] x 100 = -33.64%
Formula
Percentage change = [(144 - 217) / 217] x 100
Subtract the new number by the original number
144 - 217 = -73
-73 ÷ 217 = -0.33640552995391704
-0.33640552995391704 x 100 = -33.64%