40.2% is the change from 597 to 837
Calculation steps:
[( 837 - 597 ) ÷ 597] x 100 = 40.2%
Formula
Percentage change = [(837 - 597) / 597] x 100
Subtract the new number by the original number
837 - 597 = 240
240 ÷ 597 = 0.4020100502512563
0.4020100502512563 x 100 = 40.2%