20.95% is the change from 253 to 306
Calculation steps:
[( 306 - 253 ) ÷ 253] x 100 = 20.95%
Formula
Percentage change = [(306 - 253) / 253] x 100
Subtract the new number by the original number
306 - 253 = 53
53 ÷ 253 = 0.20948616600790515
0.20948616600790515 x 100 = 20.95%