69.48% is the change from 521 to 883
Calculation steps:
[( 883 - 521 ) ÷ 521] x 100 = 69.48%
Formula
Percentage change = [(883 - 521) / 521] x 100
Subtract the new number by the original number
883 - 521 = 362
362 ÷ 521 = 0.6948176583493282
0.6948176583493282 x 100 = 69.48%