-66.23% is the change from 228 to 77
Calculation steps:
[( 77 - 228 ) ÷ 228] x 100 = -66.23%
Formula
Percentage change = [(77 - 228) / 228] x 100
Subtract the new number by the original number
77 - 228 = -151
-151 ÷ 228 = -0.6622807017543859
-0.6622807017543859 x 100 = -66.23%