-66.27% is the change from 916 to 309
Calculation steps:
[( 309 - 916 ) ÷ 916] x 100 = -66.27%
Formula
Percentage change = [(309 - 916) / 916] x 100
Subtract the new number by the original number
309 - 916 = -607
-607 ÷ 916 = -0.6626637554585153
-0.6626637554585153 x 100 = -66.27%