22.05% is the change from 508 to 620
Calculation steps:
[( 620 - 508 ) ÷ 508] x 100 = 22.05%
Formula
Percentage change = [(620 - 508) / 508] x 100
Subtract the new number by the original number
620 - 508 = 112
112 ÷ 508 = 0.2204724409448819
0.2204724409448819 x 100 = 22.05%