29.07% is the change from 172 to 222
Calculation steps:
[( 222 - 172 ) ÷ 172] x 100 = 29.07%
Formula
Percentage change = [(222 - 172) / 172] x 100
Subtract the new number by the original number
222 - 172 = 50
50 ÷ 172 = 0.29069767441860467
0.29069767441860467 x 100 = 29.07%