21.83% is the change from 252 to 307
Calculation steps:
[( 307 - 252 ) ÷ 252] x 100 = 21.83%
Formula
Percentage change = [(307 - 252) / 252] x 100
Subtract the new number by the original number
307 - 252 = 55
55 ÷ 252 = 0.21825396825396826
0.21825396825396826 x 100 = 21.83%