64.17% is the change from 321 to 527
Calculation steps:
[( 527 - 321 ) ÷ 321] x 100 = 64.17%
Formula
Percentage change = [(527 - 321) / 321] x 100
Subtract the new number by the original number
527 - 321 = 206
206 ÷ 321 = 0.6417445482866043
0.6417445482866043 x 100 = 64.17%