79.55% is the change from 308 to 553
Calculation steps:
[( 553 - 308 ) ÷ 308] x 100 = 79.55%
Formula
Percentage change = [(553 - 308) / 308] x 100
Subtract the new number by the original number
553 - 308 = 245
245 ÷ 308 = 0.7954545454545454
0.7954545454545454 x 100 = 79.55%