69.44% is the change from 481 to 815
Calculation steps:
[( 815 - 481 ) ÷ 481] x 100 = 69.44%
Formula
Percentage change = [(815 - 481) / 481] x 100
Subtract the new number by the original number
815 - 481 = 334
334 ÷ 481 = 0.6943866943866944
0.6943866943866944 x 100 = 69.44%