220.66% is the change from 305 to 978
Calculation steps:
[( 978 - 305 ) ÷ 305] x 100 = 220.66%
Formula
Percentage change = [(978 - 305) / 305] x 100
Subtract the new number by the original number
978 - 305 = 673
673 ÷ 305 = 2.2065573770491804
2.2065573770491804 x 100 = 220.66%