YOU SAID:
the price of timber from 1500-1600 went up 1800%.
INTO JAPANESE
1500 年から 1600 年にかけての木材の価格は 1800% 上昇しました。
BACK INTO ENGLISH
Between 1500 and 1600 the price of timber increased by 1800%.
INTO JAPANESE
1500 年から 1600 年の間に木材の価格は 1800% 上昇しました。
BACK INTO ENGLISH
Between 1500 and 1600 the price of timber increased by 1800%.
That didn't even make that much sense in English.