-66.98% is the change from 321 to 106
Calculation steps:
[( 106 - 321 ) ÷ 321] x 100 = -66.98%
Formula
Percentage change = [(106 - 321) / 321] x 100
Subtract the new number by the original number
106 - 321 = -215
-215 ÷ 321 = -0.6697819314641744
-0.6697819314641744 x 100 = -66.98%