187.95% is the change from 166 to 478
Calculation steps:
[( 478 - 166 ) ÷ 166] x 100 = 187.95%
Formula
Percentage change = [(478 - 166) / 166] x 100
Subtract the new number by the original number
478 - 166 = 312
312 ÷ 166 = 1.8795180722891567
1.8795180722891567 x 100 = 187.95%