-24.43% is the change from 221 to 167
Calculation steps:
[( 167 - 221 ) ÷ 221] x 100 = -24.43%
Formula
Percentage change = [(167 - 221) / 221] x 100
Subtract the new number by the original number
167 - 221 = -54
-54 ÷ 221 = -0.24434389140271492
-0.24434389140271492 x 100 = -24.43%