72.04% is the change from 186 to 320
Calculation steps:
[( 320 - 186 ) ÷ 186] x 100 = 72.04%
Formula
Percentage change = [(320 - 186) / 186] x 100
Subtract the new number by the original number
320 - 186 = 134
134 ÷ 186 = 0.7204301075268817
0.7204301075268817 x 100 = 72.04%