71.51% is the change from 537 to 921
Calculation steps:
[( 921 - 537 ) ÷ 537] x 100 = 71.51%
Formula
Percentage change = [(921 - 537) / 537] x 100
Subtract the new number by the original number
921 - 537 = 384
384 ÷ 537 = 0.7150837988826816
0.7150837988826816 x 100 = 71.51%