97.7% is the change from 261 to 516
Calculation steps:
[( 516 - 261 ) ÷ 261] x 100 = 97.7%
Formula
Percentage change = [(516 - 261) / 261] x 100
Subtract the new number by the original number
516 - 261 = 255
255 ÷ 261 = 0.9770114942528736
0.9770114942528736 x 100 = 97.7%