74.84% is the change from 306 to 535
Calculation steps:
[( 535 - 306 ) ÷ 306] x 100 = 74.84%
Formula
Percentage change = [(535 - 306) / 306] x 100
Subtract the new number by the original number
535 - 306 = 229
229 ÷ 306 = 0.7483660130718954
0.7483660130718954 x 100 = 74.84%