442.86% is the change from 70 to 380
Calculation steps:
[( 380 - 70 ) ÷ 70] x 100 = 442.86%
Formula
Percentage change = [(380 - 70) / 70] x 100
Subtract the new number by the original number
380 - 70 = 310
310 ÷ 70 = 4.428571428571429
4.428571428571429 x 100 = 442.86%