-61.21% is the change from 428 to 166
Calculation steps:
[( 166 - 428 ) ÷ 428] x 100 = -61.21%
Formula
Percentage change = [(166 - 428) / 428] x 100
Subtract the new number by the original number
166 - 428 = -262
-262 ÷ 428 = -0.6121495327102804
-0.6121495327102804 x 100 = -61.21%