-62.47% is the change from 818 to 307
Calculation steps:
[( 307 - 818 ) ÷ 818] x 100 = -62.47%
Formula
Percentage change = [(307 - 818) / 818] x 100
Subtract the new number by the original number
307 - 818 = -511
-511 ÷ 818 = -0.6246943765281173
-0.6246943765281173 x 100 = -62.47%