89.18% is the change from 305 to 577
Calculation steps:
[( 577 - 305 ) ÷ 305] x 100 = 89.18%
Formula
Percentage change = [(577 - 305) / 305] x 100
Subtract the new number by the original number
577 - 305 = 272
272 ÷ 305 = 0.8918032786885246
0.8918032786885246 x 100 = 89.18%