-34.84% is the change from 221 to 144
Calculation steps:
[( 144 - 221 ) ÷ 221] x 100 = -34.84%
Formula
Percentage change = [(144 - 221) / 221] x 100
Subtract the new number by the original number
144 - 221 = -77
-77 ÷ 221 = -0.34841628959276016
-0.34841628959276016 x 100 = -34.84%