138.91% is the change from 221 to 528
Calculation steps:
[( 528 - 221 ) ÷ 221] x 100 = 138.91%
Formula
Percentage change = [(528 - 221) / 221] x 100
Subtract the new number by the original number
528 - 221 = 307
307 ÷ 221 = 1.3891402714932126
1.3891402714932126 x 100 = 138.91%