-36.75% is the change from 838 to 530
Calculation steps:
[( 530 - 838 ) ÷ 838] x 100 = -36.75%
Formula
Percentage change = [(530 - 838) / 838] x 100
Subtract the new number by the original number
530 - 838 = -308
-308 ÷ 838 = -0.36754176610978523
-0.36754176610978523 x 100 = -36.75%