89.45% is the change from 275 to 521
Calculation steps:
[( 521 - 275 ) ÷ 275] x 100 = 89.45%
Formula
Percentage change = [(521 - 275) / 275] x 100
Subtract the new number by the original number
521 - 275 = 246
246 ÷ 275 = 0.8945454545454545
0.8945454545454545 x 100 = 89.45%