75.43% is the change from 525 to 921
Calculation steps:
[( 921 - 525 ) ÷ 525] x 100 = 75.43%
Formula
Percentage change = [(921 - 525) / 525] x 100
Subtract the new number by the original number
921 - 525 = 396
396 ÷ 525 = 0.7542857142857143
0.7542857142857143 x 100 = 75.43%