63.53% is the change from 606 to 991
Calculation steps:
[( 991 - 606 ) ÷ 606] x 100 = 63.53%
Formula
Percentage change = [(991 - 606) / 606] x 100
Subtract the new number by the original number
991 - 606 = 385
385 ÷ 606 = 0.6353135313531353
0.6353135313531353 x 100 = 63.53%