151.69% is the change from 207 to 521
Calculation steps:
[( 521 - 207 ) ÷ 207] x 100 = 151.69%
Formula
Percentage change = [(521 - 207) / 207] x 100
Subtract the new number by the original number
521 - 207 = 314
314 ÷ 207 = 1.5169082125603865
1.5169082125603865 x 100 = 151.69%