-33.48% is the change from 221 to 147
Calculation steps:
[( 147 - 221 ) ÷ 221] x 100 = -33.48%
Formula
Percentage change = [(147 - 221) / 221] x 100
Subtract the new number by the original number
147 - 221 = -74
-74 ÷ 221 = -0.334841628959276
-0.334841628959276 x 100 = -33.48%