208.47% is the change from 307 to 947
Calculation steps:
[( 947 - 307 ) ÷ 307] x 100 = 208.47%
Formula
Percentage change = [(947 - 307) / 307] x 100
Subtract the new number by the original number
947 - 307 = 640
640 ÷ 307 = 2.0846905537459284
2.0846905537459284 x 100 = 208.47%