838.36% is the change from 73 to 685
Calculation steps:
[( 685 - 73 ) ÷ 73] x 100 = 838.36%
Formula
Percentage change = [(685 - 73) / 73] x 100
Subtract the new number by the original number
685 - 73 = 612
612 ÷ 73 = 8.383561643835616
8.383561643835616 x 100 = 838.36%