51.74% is the change from 344 to 522
Calculation steps:
[( 522 - 344 ) ÷ 344] x 100 = 51.74%
Formula
Percentage change = [(522 - 344) / 344] x 100
Subtract the new number by the original number
522 - 344 = 178
178 ÷ 344 = 0.5174418604651163
0.5174418604651163 x 100 = 51.74%