30.43% is the change from 161 to 210
Calculation steps:
[( 210 - 161 ) ÷ 161] x 100 = 30.43%
Formula
Percentage change = [(210 - 161) / 161] x 100
Subtract the new number by the original number
210 - 161 = 49
49 ÷ 161 = 0.30434782608695654
0.30434782608695654 x 100 = 30.43%