81.78% is the change from 516 to 938
Calculation steps:
[( 938 - 516 ) ÷ 516] x 100 = 81.78%
Formula
Percentage change = [(938 - 516) / 516] x 100
Subtract the new number by the original number
938 - 516 = 422
422 ÷ 516 = 0.8178294573643411
0.8178294573643411 x 100 = 81.78%