152.91% is the change from 206 to 521
Calculation steps:
[( 521 - 206 ) ÷ 206] x 100 = 152.91%
Formula
Percentage change = [(521 - 206) / 206] x 100
Subtract the new number by the original number
521 - 206 = 315
315 ÷ 206 = 1.529126213592233
1.529126213592233 x 100 = 152.91%