210.49% is the change from 305 to 947
Calculation steps:
[( 947 - 305 ) ÷ 305] x 100 = 210.49%
Formula
Percentage change = [(947 - 305) / 305] x 100
Subtract the new number by the original number
947 - 305 = 642
642 ÷ 305 = 2.1049180327868853
2.1049180327868853 x 100 = 210.49%