69.38% is the change from 503 to 852
Calculation steps:
[( 852 - 503 ) ÷ 503] x 100 = 69.38%
Formula
Percentage change = [(852 - 503) / 503] x 100
Subtract the new number by the original number
852 - 503 = 349
349 ÷ 503 = 0.6938369781312127
0.6938369781312127 x 100 = 69.38%