69.93% is the change from 296 to 503
Calculation steps:
[( 503 - 296 ) ÷ 296] x 100 = 69.93%
Formula
Percentage change = [(503 - 296) / 296] x 100
Subtract the new number by the original number
503 - 296 = 207
207 ÷ 296 = 0.6993243243243243
0.6993243243243243 x 100 = 69.93%