67.95% is the change from 521 to 875
Calculation steps:
[( 875 - 521 ) ÷ 521] x 100 = 67.95%
Formula
Percentage change = [(875 - 521) / 521] x 100
Subtract the new number by the original number
875 - 521 = 354
354 ÷ 521 = 0.6794625719769674
0.6794625719769674 x 100 = 67.95%