20.55% is the change from 764 to 921
Calculation steps:
[( 921 - 764 ) ÷ 764] x 100 = 20.55%
Formula
Percentage change = [(921 - 764) / 764] x 100
Subtract the new number by the original number
921 - 764 = 157
157 ÷ 764 = 0.2054973821989529
0.2054973821989529 x 100 = 20.55%