334.48% is the change from 87 to 378
Calculation steps:
[( 378 - 87 ) ÷ 87] x 100 = 334.48%
Formula
Percentage change = [(378 - 87) / 87] x 100
Subtract the new number by the original number
378 - 87 = 291
291 ÷ 87 = 3.3448275862068964
3.3448275862068964 x 100 = 334.48%