10.85% is the change from 470 to 521
Calculation steps:
[( 521 - 470 ) ÷ 470] x 100 = 10.85%
Formula
Percentage change = [(521 - 470) / 470] x 100
Subtract the new number by the original number
521 - 470 = 51
51 ÷ 470 = 0.10851063829787234
0.10851063829787234 x 100 = 10.85%