54.74% is the change from 612 to 947
Calculation steps:
[( 947 - 612 ) ÷ 612] x 100 = 54.74%
Formula
Percentage change = [(947 - 612) / 612] x 100
Subtract the new number by the original number
947 - 612 = 335
335 ÷ 612 = 0.5473856209150327
0.5473856209150327 x 100 = 54.74%