20.55% is the change from 253 to 305
Calculation steps:
[( 305 - 253 ) ÷ 253] x 100 = 20.55%
Formula
Percentage change = [(305 - 253) / 253] x 100
Subtract the new number by the original number
305 - 253 = 52
52 ÷ 253 = 0.20553359683794467
0.20553359683794467 x 100 = 20.55%