-62.24% is the change from 813 to 307
Calculation steps:
[( 307 - 813 ) ÷ 813] x 100 = -62.24%
Formula
Percentage change = [(307 - 813) / 813] x 100
Subtract the new number by the original number
307 - 813 = -506
-506 ÷ 813 = -0.6223862238622386
-0.6223862238622386 x 100 = -62.24%