-70.59% is the change from 221 to 65
Calculation steps:
[( 65 - 221 ) ÷ 221] x 100 = -70.59%
Formula
Percentage change = [(65 - 221) / 221] x 100
Subtract the new number by the original number
65 - 221 = -156
-156 ÷ 221 = -0.7058823529411765
-0.7058823529411765 x 100 = -70.59%