89.3% is the change from 215 to 407
Calculation steps:
[( 407 - 215 ) ÷ 215] x 100 = 89.3%
Formula
Percentage change = [(407 - 215) / 215] x 100
Subtract the new number by the original number
407 - 215 = 192
192 ÷ 215 = 0.8930232558139535
0.8930232558139535 x 100 = 89.3%