50.36% is the change from 552 to 830
Calculation steps:
[( 830 - 552 ) ÷ 552] x 100 = 50.36%
Formula
Percentage change = [(830 - 552) / 552] x 100
Subtract the new number by the original number
830 - 552 = 278
278 ÷ 552 = 0.5036231884057971
0.5036231884057971 x 100 = 50.36%