63.53% is the change from 521 to 852
Calculation steps:
[( 852 - 521 ) ÷ 521] x 100 = 63.53%
Formula
Percentage change = [(852 - 521) / 521] x 100
Subtract the new number by the original number
852 - 521 = 331
331 ÷ 521 = 0.6353166986564299
0.6353166986564299 x 100 = 63.53%