220.33% is the change from 305 to 977
Calculation steps:
[( 977 - 305 ) ÷ 305] x 100 = 220.33%
Formula
Percentage change = [(977 - 305) / 305] x 100
Subtract the new number by the original number
977 - 305 = 672
672 ÷ 305 = 2.2032786885245903
2.2032786885245903 x 100 = 220.33%