377.78% is the change from 45 to 215
Calculation steps:
[( 215 - 45 ) ÷ 45] x 100 = 377.78%
Formula
Percentage change = [(215 - 45) / 45] x 100
Subtract the new number by the original number
215 - 45 = 170
170 ÷ 45 = 3.7777777777777777
3.7777777777777777 x 100 = 377.78%