-67.43% is the change from 307 to 100
Calculation steps:
[( 100 - 307 ) ÷ 307] x 100 = -67.43%
Formula
Percentage change = [(100 - 307) / 307] x 100
Subtract the new number by the original number
100 - 307 = -207
-207 ÷ 307 = -0.6742671009771987
-0.6742671009771987 x 100 = -67.43%