211.8% is the change from 305 to 951
Calculation steps:
[( 951 - 305 ) ÷ 305] x 100 = 211.8%
Formula
Percentage change = [(951 - 305) / 305] x 100
Subtract the new number by the original number
951 - 305 = 646
646 ÷ 305 = 2.1180327868852458
2.1180327868852458 x 100 = 211.8%